Pictures of Hot Spots on Dogs: Stages, Locations and Treatment
Pictures of hot spots on dogs from the first red, moist patch to healed skin, where they appear on the body, what causes them, safe first aid, what to put on them and when to call your vet.
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Medically reviewed by Dr. Pippa Elliott, BVMS MRCVS · Last reviewed
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Pictures of hot spots on dogs show a round, red, raw patch of skin that is wet or oozing, usually ringed by matted, damp fur. The sore can appear within a couple of hours and keep spreading, and most dogs lick, chew or scratch at it nonstop.
The photos below follow a hot spot from the first moist patch to infection and back to healed skin, and show where hot spots form on the body. Use them to compare, not to diagnose: ringworm, mange and skin infections can look similar, so let your veterinarian confirm what it is.
If the sore has pus, is spreading fast or hurts too much to touch, call your vet today.
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What is a hot spot on a dog?
A hot spot on a dog is a patch of skin your dog has licked, chewed or scratched raw until it becomes inflamed and colonized by bacteria. Vets call it acute moist dermatitis or pyotraumatic dermatitis. Owners also spell it hotspot, and the name comes from the warmth of the inflamed skin (Cornell).
The bacteria are usually Staphylococcus pseudintermedius, a normal resident of dog skin that takes hold once the surface is damaged. The Merck Veterinary Manual classes hot spots as a surface pyoderma, the shallowest kind of bacterial skin infection. Left untreated, though, a hot spot can spread deeper into the hair follicles (Clinician's Brief).
What makes hot spots alarming is speed. Licking irritates nerve endings in the skin, which makes it itch more, and VCA Animal Hospitals describes owners leaving for work after spotting a pinpoint of redness and coming home to a raw sore the size of a pancake.
- 1A hot spot is a red, moist patch of raw skin, usually ringed by wet, matted fur, that can spread within hours.
- 2It starts with an itch or pain: fleas, allergies, ear infections, anal gland trouble or a damp, matted coat set off the licking.
- 3First aid is to clip, clean with dilute chlorhexidine, dry, and stop the licking with a cone or other barrier.
- 4See a vet the same day for pus, thick crust, fast spreading, severe pain, a sore more than a day old, or one near the eye.
- 5With treatment, a hot spot should look drier within a few days, but clipped hair takes a few months to grow back fully.
What does a hot spot look like on a dog? Pictures by stage
What a hot spot looks like depends on its stage, but most share raw red skin that glistens or oozes, a clear edge, and matted wet fur stuck to the rim. The hair over the sore falls out and the skin feels warm. Under a thick coat, the sore is often bigger than it looks.
A sore is probably a hot spot if it appeared within hours, is wet or weeping, sits where your dog keeps licking or scratching, and hurts to touch. Dry, scaly or slow-growing patches point to a look-alike. Your vet confirms it with an exam, sometimes plus a quick skin test.
To judge how far a hot spot has progressed, match it to the closest stage, then follow the next step for that stage below:
- Early: coin-sized or smaller, flat, pink-red and damp, with no crust or pus
- Fully developed: palm-sized or larger, raw and weeping, with the hair gone and the fur around it matted
- Infected: pus, thick yellow crust, bumps around the edge, swelling or a bad smell
Early hot spot: a small, red, moist patch
An early hot spot is a small, flat, pink-to-red patch, often no bigger than a coin, with a damp, slightly shiny surface. A few hairs are stuck together in wet clumps, and the fur over it is thinning. There is no crust or pus yet.
For blocking access to a hot spot: a rigid recovery collar. This listing is Small; measure your dog and check that it prevents licking.
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Your dog may lick this red, moist patch again and again or flinch when you touch it. Hot spots can pop up in as little as a couple of hours, according to VCA, so a patch you notice in the morning can be much larger by evening.
Next step: clip, clean and dry the patch, fit a cone, and call your vet to book a visit. Catching a sore at this size spares your dog pain and often saves on vet bills, as Cornell's canine health center notes.
A Dogswell rigid recovery collar is one way to block access to the sore. The linked size is Small; measure your dog and check that the cone prevents licking before leaving your dog unsupervised.
Fully developed hot spot: raw, oozing and matted
A fully developed hot spot is a raw, glistening, red sore with a sharp edge, often the size of your palm or larger. The hair over it is gone, and it oozes clear to yellowish fluid that glues the surrounding fur into wet mats.
Veterinary dermatologists describe these sores as flat, moist and weeping, sometimes with an open erosion in the center, and note that matted hair can hide their true size until the area is clipped (Clinician's Brief). A fully developed hot spot is painful, so even a gentle dog may snap when you touch it.
Next step: book a vet visit within 24 hours, because a sore that is a day old is likely to be infected, according to Cornell. Start first aid only if your dog lets you handle the area. Clipping a sore this size often hurts, and some dogs need sedation for it.
Infected hot spot: pus, crust and a bad smell
An infected hot spot has moved past surface irritation. Compared with the earlier stages, look for:
- Yellow pus, or thick yellow-brown crust building up at the edges
- Small pimple-like bumps around the sore, which can mean infection has spread into the hair follicles
- Swelling, more heat, and redness that keeps spreading
- A bad smell
- A sore that isn't healing, or keeps growing, despite care
Next step: see your vet the same day. An infected hot spot needs an exam and, usually, prescription treatment.
Hot spot pictures by body location
Hot spots can form anywhere your dog can lick, chew or scratch, but the body location is often the best clue to what started it. A board-certified veterinary dermatologist at the Virginia-Maryland College of Veterinary Medicine puts it simply: if the hot spot is on the back, look for fleas (Virginia Tech).
Each photo below pairs a body location with its likely trigger, so you know what to mention at the vet visit. The same spot can have more than one cause, so treat the trigger as a lead, not a diagnosis.
Face, cheeks and ears
On the face, hot spots usually appear on the cheek just below the ear or behind it, sometimes spreading down the side of the face. The usual trigger is an ear infection: the dog scratches at an itchy, painful ear with a hind foot and tears open the skin beside it.
Likely trigger: an ear infection, often yeast or bacteria. Dogs with drop ears and dogs that swim are more prone, because wet ears breed infection, according to Cornell. Ask your vet to check both ears, and read our guide to dog ear yeast infection.
Facial hot spots made by scratching have often become deeper infections by the time they are examined (Clinician's Brief), and a sore near the eye is no place for home clipping. Both are reasons to see your vet promptly.
Neck and collar line
A hot spot on the neck often hides under the collar or sits where your dog scratches with a hind leg. Ear infections can cause neck sores too (VCA). Slide the collar aside when you check, since fur and the collar can cover a sore until it is large.
Likely trigger: an ear infection, allergies or fleas, made worse by a collar that stays damp after swimming or baths. Take the collar off while the sore heals and walk your dog on a harness.
Back and rump
Hot spots on the lower back and rump, just in front of the tail, sit in the classic flea-allergy zone. Flea allergy dermatitis concentrates itch on the lower back, tail base and back of the thighs, and the licking and chewing it causes can lead straight to a hot spot (Merck Veterinary Manual).
Likely trigger: flea allergy. Part the fur to look for fleas or flea dirt, and treat every pet in the house and the home itself, not just the dog with the sore.
Tail and tail base
On the tail, hot spots usually form on top near the base or underneath it, where a thick coat can hide them. Two triggers dominate here: flea allergy, which focuses itch at the tail base, and sore or infected anal glands, which make dogs lick and chew under or on top of the tail (VCA).
Likely trigger: fleas or anal gland trouble. Lift your dog's tail at least once a week to check for redness, moisture or licked, discolored hair, as Cornell recommends.
Legs
On the legs, hot spots often appear on the outer front leg (forearm), one of the easiest places for a bored or itchy dog to lick while lying down. Dogs with arthritis may also lick a sore joint or a pressure point, like the hip or ankle, until the skin breaks (VCA).
For a vet-approved cleansing option: Vetericyn Plus hypochlorous hot-spot spray. It does not replace examination of a spreading or infected sore.
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Likely trigger: boredom or anxiety licking, allergies, or joint pain.
One look-alike matters here. A thick, firm, hairless patch on the lower leg that has been licked for weeks is more likely a lick granuloma (acral lick dermatitis), a chronic lesion that needs a different plan from a hot spot (Clinician's Brief).
Belly and groin
On the belly and groin, where the hair is thin, a hot spot shows as a red, moist, raw patch on pink skin, usually on the lower belly near the inner thighs. Allergic dogs commonly itch on the belly (Merck Veterinary Manual), and flea bites also cluster on the lower belly and groin.
Likely trigger: allergies or fleas. If the whole belly is red, bumpy or scabby rather than one wet sore, an allergic rash or a bacterial skin infection is more likely than a hot spot; compare the look-alikes below.
Paws and between the toes
Paw hot spots form in the haired skin on top of the foot and between the toes, where constant licking keeps the fur wet and matted. Allergic dogs often lick their paws, and bored dogs lick their feet while resting (VCA).
Likely trigger: allergies or habit licking. Paw hot spot treatment needs a few extra steps:
- Clip the hair between the toes only if your dog tolerates it, with clippers rather than scissors; otherwise let your vet do it.
- Clean with dilute chlorhexidine and dry carefully between every toe.
- Cover the foot with a clean sock or light bandage, or use a cone, so your dog can't lick it.
- Wipe and dry the feet after walks on wet grass.
A raw or cracked paw pad is more often an injury than a hot spot. Pads can tear, get punctured or burn on a scorching summer sidewalk (VCA), so a limping dog with a damaged pad needs a vet check.
Hot spot or something else? Common look-alikes
Several skin problems can look like a hot spot in a photo, and some spread to other pets or people. The quickest clues are speed and texture: a hot spot is a moist raw sore that appears within hours, while ringworm and mange usually cause drier, scaly or crusty hair loss that develops more slowly.
Only an exam can tell them apart, often with skin scrapings, cytology or a fungal test (Merck Veterinary Manual). Here is how a hot spot differs from ringworm, mange, bacterial folliculitis and an allergic rash.
| Condition | How it looks and starts | Itch | Contagious? | Next step |
|---|---|---|---|---|
| Hot spot | One moist raw sore with wet, matted fur that appears within hours | Intense and painful | No, though a trigger such as fleas can spread | Clip, clean, stop the licking and book a vet visit |
| Ringworm | A roughly round, dry scaly patch of hair loss with broken hairs, often several patches that widen over time | Usually mild or none | Yes, to pets and people | Vet visit for a fungal culture or PCR test before treating |
| Sarcoptic mange | Red, crusty, hairless skin starting on the ears, elbows, hocks, chest and belly, appearing days to weeks after contact with an infested dog | Severe | Yes, to other dogs and to people | Vet visit for skin scrapings, and treatment for every dog in the home |
| Demodectic mange (localized) | A few small, hairless, red, scaly spots, usually in dogs under a year old | Mild or none | No | Vet visit for a skin scraping |
| Bacterial folliculitis | Many small red bumps, pustules and rings of scale with patchy hair loss, often on the trunk and belly | Variable | Usually not, since it grows from the dog's own skin bacteria | Vet visit for skin cytology and a treatment plan |
| Allergic rash | Red, itchy skin on the paws, face, ears, armpits and belly, often flaring with the seasons, with no single wet sore | Itch is the main sign | No | Vet visit to find the allergy trigger and control the itch |
For the two conditions owners mix up most, see ringworm vs hot spot. Our mange pictures show sarcoptic and demodectic mange as they progress, pictures of staph infection in dogs cover bacterial folliculitis and deeper pyoderma, and food allergy rash pictures show allergic skin.
Still unsure? Our dog skin problems pictures guide covers other common conditions. And if you've found a firm bump rather than a wet sore, start with our vet guide to lumps on dogs to narrow it down. Common culprits include cysts, mast cell tumors, benign histiocytomas in young dogs and harmless skin tags.
What causes hot spots on dogs?
Every hot spot starts with something that makes your dog itch or hurt, and flea allergy is the most common trigger. VCA lists flea allergies first among the itchy conditions behind hot spots (VCA), and veterinary dermatologists call flea bite hypersensitivity a primary cause, with sores often appearing shortly after flea exposure (Clinician's Brief).
Other common triggers include:
- Environmental and food allergies; if you're not sure which your dog has, learn how to tell food allergies from flea allergies
- Ear infections, a common cause of face and neck hot spots
- Anal gland inflammation, which leads to sores under or on top of the tail
- Mites, mosquitoes and other insect bites
- Matted or dirty fur, and thick coats that stay damp after swimming, baths or rain
- Pain from arthritis or a sore joint, which some dogs lick until the skin breaks
- Boredom or anxiety licking; if licking has become your dog's habit, our guide to dog licking paws explains when it signals a problem worth treating
Whatever the trigger, the cycle is the same. Your dog licks, chews or scratches until the skin breaks, bacteria from its own skin settle into the raw patch, and the sore itches even more, so the cycle speeds up (VCA).
Moisture sets the stage but doesn't cause a hot spot by itself: the Virginia-Maryland dermatologist stresses that the dog, not moisture, produces the sore. Wet, matted fur and humid weather make skin easier to damage and help bacteria multiply, so hot spots are more common in warm weather (Cornell).
After swimming or bathing, a clean Frisco Microfiber Towel helps you dry the coat gently. Work through thick fur so the undercoat dries too, and avoid rubbing a sore.
If your dog is itchy all over rather than in one spot, start with why your dog is so itchy.
Why is my dog suddenly getting hot spots?
A hot spot that appears out of nowhere usually means something new is making your dog itch, even if the sore itself seems sudden. Common culprits:
- Flea season starting, or a missed dose of flea prevention
- Pollen season in a dog with environmental allergies
- A swim, bath or rainy walk that left a thick undercoat damp
- A new mat, burr or other foreign body irritating the skin
- An ear infection or anal gland problem that is just starting
Hot spots commonly come back when the underlying itch isn't found and treated (VCA). If this isn't your dog's first one, ask your vet about an allergy workup and a flea-control check for every pet in the home.
Ask your vet whether Advantage II for dogs over 55 pounds fits the prevention plan. Choose the correct weight range and never apply a spot-on to damaged skin; a sore at the application site may call for a different option.
Which dogs get hot spots most? Bulldogs, retrievers and thick coats
Any dog can get a hot spot, but thick-coated breeds get them most, because dense undercoats trap heat and dry slowly (Clinician's Brief). Breeds that veterinary sources single out include:
- Golden Retrievers, German Shepherd Dogs and Newfoundlands, according to Cornell
- Collies and Saint Bernards, according to Clinician's Brief
- Labrador Retrievers and English Bulldogs, according to PetMD
Clinician's Brief also notes that young male dogs under 4 years old are overrepresented, and Cornell adds that dogs with drop ears are more likely to get hot spots under the ear.
For flea-trigger prevention: Advantage II for dogs over 55 lb, if suitable for your vet’s plan. Do not apply to damaged skin.
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Bulldog hot spots need a closer look. English and French Bulldogs have deep facial wrinkles, lip folds and tail folds, and warm, moist folds carry more bacteria than other skin (Merck Veterinary Manual).
A red, moist patch inside a bulldog's fold is often skin-fold infection rather than a classic hot spot. It keeps returning while the fold stays damp, so ask your vet how to keep the folds clean and dry.
How to treat and get rid of a hot spot on a dog
To get rid of a hot spot, you need to do two things at once: stop the licking and scratching that keeps reopening the skin, and clean the sore so it can dry and heal (VCA). The itch that started it then needs its own treatment, or another hot spot is likely (Texas A&M).
Many owners call a hot spot a heat spot, and the treatment is the same whatever you call it. The best hot spot treatment for dogs combines first aid, a barrier against licking and your vet's plan for the trigger; no single spray or cream does all three.
Start by deciding whether home care is a safe first step:
- Start first aid tonight and book a visit if the hotspot is small, less than a day old, free of pus, and your dog lets you touch it.
- Skip home care and call your vet today if you see any of the same-day warning signs listed with the infected stage above.
- Book a visit to find the trigger if hot spots keep coming back; clipping, cleaning and a cone still help in the meantime.
First aid at home: clip, clean and dry
You can treat a small, fresh hotspot at home with a few DIY steps, as long as your dog tolerates handling. Hot spots hurt, so touch the area gently first; if your dog pulls away, growls or cries, stop and let your vet take over, as Cornell advises.
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- Clip the hair around the sore with electric clippers, never scissors, which easily cut skin (VCA). Clip past the edge until you reach healthy skin, since matted fur hides the sore's true size.
- Clean the sore with dilute chlorhexidine, the dog-safe antiseptic vets use to kill bacteria on hot spots. Use a chlorhexidine cleanser or wipe made for dogs, soak a gauze pad, and dab the sore gently without scrubbing.
- Dilute concentrates exactly as directed. If your chlorhexidine is a concentrated solution, mix it as the label or your vet says, because stronger solutions damage healing tissue (Merck Veterinary Manual). Mild, unscented soap and water also works for a first clean.
- Rinse and pat dry with a clean towel, without rubbing.
- Stop the licking right away with a cone or other barrier.
- Repeat the cleaning as your vet directs, and check the sore daily against the healing stages below.
Stop home care and call your vet if the sore is more than 24 hours old, has pus or keeps growing, because infection is likely by then.
If your dog has several small patches or won't tolerate clippers, a chlorhexidine shampoo cleans a wider area. Veterinary dermatologists note that shampoo alone works less reliably than clipping and cleaning the sore directly (Clinician's Brief), so use it to tide your dog over until the vet visit.
If you need clippers for the clipping step, see our guide to the best dog clippers.
How to stop a dog from licking a hot spot
A hot spot can't dry or heal while your dog keeps licking it, which is why stopping the licking matters as much as anything you put on the sore. Choose a barrier your dog can't get around:
- Elizabethan collar (cone): the most reliable option for sores your dog can reach with its mouth (VCA).
- Soft or inflatable donut collar: works if it truly keeps the sore out of reach, as Cornell notes; check that your dog can't curl around it.
- T-shirt, bodysuit, sock or light bandage: covers sores on the body or feet and blocks a scratching hind paw (Texas A&M).
- Anti-itch medicine from your vet: calming the itch takes away the urge to lick.
Keep the barrier on day and night until the scab falls away on its own, so licking can't reopen the sore. Take it off only for supervised meals if the cone gets in the way of eating.
For bored or anxious lickers, add exercise and enrichment, such as food puzzles, chews and longer walks, so the mouth has something else to do (VCA).
What can I put on my dog's hot spot?
After clipping and cleaning, the safest things to put on a dog's hot spot are a dog-safe antiseptic and whatever your vet prescribes. Over-the-counter hot spot products can help too, if you check the label first:
- Antiseptic cleansers and wipes: dilute chlorhexidine is what vets use to disinfect hot spots (VCA).
- Hot spot sprays and gels: pick one made for dogs that is free of alcohol and tea tree oil and safe if licked, such as a hypochlorous acid spray. The questions at the end compare two popular brands.
One hypochlorous option to discuss with your vet is Vetericyn Plus Hot Spot Spray.
- Medicated shampoos: chlorhexidine alone, or combined with miconazole, is the usual choice for bathing a dog with a skin infection (Merck Veterinary Manual).
- Powders and creams: use only dog products your vet approves, since creams tend to make dogs lick more (PetMD).
For help choosing a bath product, see our guide to dog shampoo for itchy skin.
For vet-directed medicated bathing: DOUXO S3 PYO chlorhexidine shampoo. Follow the product directions and your vet’s care plan.
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Human creams are where published advice conflicts:
- Cornell says a healthy dog with a small, uninfected spot can have a first-aid cream (Neosporin cream, not the ointment) or 1% hydrocortisone cream.
- PetMD's veterinary writers say never to use human creams, because dogs lick them.
- Veterinary dermatologists writing in Clinician's Brief avoid potent steroid creams on hot spots, because they can slow healing.
The safe middle ground: use hydrocortisone cream only if your vet agrees for this sore, apply a thin layer, and only where your dog can't lick it off. Licked creams can cause vomiting and diarrhea, and some human skin products are genuinely dangerous to dogs (Merck Veterinary Manual).
What ointment can you put on a dog's hot spot? Only one your vet prescribes. Petroleum jelly, balms and greasy ointments seal moisture into a sore that needs to dry. Cornell's advice likewise specifies the cream, not the ointment.
Vets sometimes prescribe a combination ointment such as Animax ointment for dogs, which pairs an antifungal and two antibiotics with a steroid, for inflamed, weeping skin. Its label warns against using it where pus is present, so a leftover tube is never a safe guess.
Best home remedies for hot spots on dogs, and what to avoid
The best home remedies for hot spots on dogs are the plain ones: clipping, cleaning with dilute chlorhexidine, keeping the sore dry and stopping the licking. A cool compress can make your dog more comfortable while you wait for the vet.
Natural remedies are another matter. There's no good evidence that any of them cures a hot spot, and several sting, damage raw tissue or are toxic if licked. Check a remedy here before you use it:
| Home remedy | Verdict | Why |
|---|---|---|
| Clipping and cleaning with dilute chlorhexidine | Safe | The core of vet-recommended first aid, and it lets the sore dry |
| Cone, T-shirt or other barrier | Safe | Stops the licking that keeps the sore open |
| Cool compress with clean water or sterile saline | Generally safe | Soothes heat and itch for comfort; saline is gentle on raw tissue, but it does not treat infection |
| Alcohol-free witch hazel | Ask your vet first | An astringent, but many drugstore witch hazels contain alcohol, which stings |
| Hydrocortisone or first-aid cream | Ask your vet first | Only a thin layer on a small, clean spot the dog cannot lick |
| Apple cider vinegar | Avoid | Acidic, so it stings raw skin and can irritate it further |
| Hydrogen peroxide | Avoid | Damages healthy tissue the sore needs to heal |
| Rubbing alcohol | Avoid | Stings badly on raw, open skin |
| Tea tree and other essential oils | Avoid | Absorbed through skin; tea tree oil is the essential oil most often reported in pet poisonings |
| Petroleum jelly, balms and greasy ointments | Avoid | Trap moisture in a sore that needs to dry |
| Leftover human antibiotics or antibiotic ointments | Avoid | Often the wrong drug for dog skin bacteria, and licked ointment upsets the stomach |
How vets treat hot spots: medication and antibiotics
Your veterinarian first confirms it really is a hot spot and looks for what caused it. Expect some or all of these steps:
- Clipping the hair past the edge of the sore, under sedation if it's too painful (VCA).
- A check for satellite bumps around the sore, a sign that infection has spread into the hair follicles (Clinician's Brief).
- Skin cytology: pressing a glass slide or tape to the sore and looking at the sample under a microscope for bacteria, yeast and inflammatory cells (Merck Veterinary Manual).
- Skin scrapings or fungal tests when mites or ringworm are possible.
- A hunt for the trigger: an ear exam, anal gland check and flea check.
Treatment then depends on what your vet finds:
- Topical antiseptic therapy: under the 2025 international antimicrobial guidelines, this is the treatment of choice for hot spots, so most true hot spots don't need oral antibiotics (Virginia-Maryland College of Veterinary Medicine).
- Oral antibiotics: reserved for deeper infection (folliculitis or furunculosis), given for the full course your vet prescribes.
- Anti-itch and anti-inflammatory medicine: a short course of corticosteroids, or a newer itch blocker such as oclacitinib (Apoquel) or a lokivetmab (Cytopoint) injection, sometimes with pain relief (Clinician's Brief). An antihistamine may ease allergic itch in some dogs.
- Treatment for the trigger: flea control for every pet in the home, ear medication, anal gland care, an allergy plan or arthritis pain relief (VCA).
Many vets recheck the skin a few weeks later to confirm it has fully healed before stopping medication, which helps prevent a relapse.
Hot spot healing stages: pictures from treatment to regrowth
Once the licking stops and the sore stays clean, healing follows a predictable order: the surface dries, a scab forms, the skin closes and new hair grows in. The photos of each healing stage below show what on-track healing looks like, and the timeline shows roughly when to expect each change.
Mild, early hot spots move through the stages faster than large or infected ones. A simple hot spot is healing on schedule when:
- It is visibly drier within 3 to 4 days of starting treatment
- A thin, dry scab has formed within about a week
- The skin has closed within about 1 to 2 weeks
Book a recheck if the sore is still moist after 3 to 4 days, the scab keeps reopening, pus or new bumps appear around it, or no hair has regrown by about 4 months.
A sore that hasn't improved after 3 to 4 days of treatment may not be a simple hot spot, so your vet may repeat skin tests or change the plan (Merck Veterinary Manual).
If your vet prescribed antibiotics for a deeper infection, expect a planned recheck about 3 to 4 weeks after the first visit, before the medicine stops (Clinician's Brief).
| Stage | What you should see | Roughly when | Call your vet if |
|---|---|---|---|
| Just treated | A clipped and cleaned sore, still red and moist, often larger than it looked under the fur | Day of treatment | It is oozing pus or spreading the next day |
| Drying | Oozing stops, the surface looks dull instead of wet, and redness fades to pink | Days 2 to 4 of treatment | It is no drier after 3 to 4 days |
| Scabbing | A thin, flat, dry scab forms and the itch settles | Days 4 to 7 for a simple hot spot | The scab keeps cracking open, weeping or smelling |
| Skin healed | Smooth, dry, pale skin with no scab | About 1 to 2 weeks for a simple hot spot; deeper infections take weeks longer | Redness, moisture or bumps come back |
| New hair | Short, even new hair fills the clipped patch | Grows over the following weeks; the coat usually regrows fully within 3 to 4 months | There is no regrowth by about 4 months |
Just treated: clipped and cleaned
Right after clipping and cleaning, a hot spot often looks worse than before. The sore is fully exposed, still red and moist, and usually bigger than the fur suggested. That's expected: what matters is a clean surface, a wide margin of clipped fur and no matted hair touching the sore.
What to do now: keep it clean and dry, keep the cone on, and give any medicine exactly as prescribed. This first stage of healing lasts a day or two.
Healing: drying and scabbing
Over the next few days, the sore stops weeping, the surface turns dull and dry, and the redness fades to pink at the edges. A thin, flat, dry scab then forms over it.
Cornell's advice: when the redness is gone and a healthy-looking scab has formed, you can usually stop home treatment, and don't peel the scab, because removing it delays healing (Cornell). If your vet prescribed medicine, finish the course as directed.
Healing skin can still itch. If it does, ask your vet about anti-itch medicine, and keep the cone on until the scab falls away on its own so licking can't reopen the sore. Ask your vet before trying any home remedy on the scab.
Healed: smooth skin and new hair
A healed hot spot is smooth, dry and pale, with no scab, moisture or redness. Short, even new hair fills in the clipped patch over the following weeks, and the coat generally grows back within 3 to 4 months (University of Minnesota).
If the hair is slow to return: delayed regrowth after clipping is seen more often in plush, thick-coated breeds, but no new hair growth after about 4 months is considered abnormal and worth a vet check, according to the same University of Minnesota reference.
How to prevent hot spots on dogs
Preventing hot spots with flea control, grooming, drying and quick treatment of any itch spares your dog a painful sore. VCA calls flea control and proper grooming the best defenses for many dogs (VCA), and Cornell names flea and tick control the most important preventive step. Build these habits into your routine:
- Year-round flea control for every pet in the house. Keep veterinary-recommended flea and tick prevention going all year, since flea allergy is the most common trigger, and learn what fleas on dogs look like so you can spot them early. If your dog gets neck hot spots, ask your vet whether a chewable or spot-on suits better than a collar, and never fit a flea collar over a healing sore.
- Regular brushing and mat removal, especially for thick or double coats; some dogs also benefit from seasonal grooming and regular baths (VCA).
- Thorough drying after swims, baths and rain. Rinse off lake or pool water, then towel short coats and brush and blow-dry long or double coats down to the skin (Cornell).
- Daily ear checks and a weekly look under the tail for redness, moisture or licked, discolored hair.
- Early treatment of allergies and ear infections with your vet's help (Texas A&M).
- More exercise and enrichment for bored or anxious dogs, so licking doesn't become a habit.
Hot spot questions dog owners ask
Frequently Asked Questions
Will a hotspot on a dog heal on its own?
Rarely, and waiting is risky. A very small, new spot may settle if your dog stops licking and the area is clipped, cleaned and kept dry.
But most dogs keep licking, and without treatment the sore can spread deeper into the hair follicles. Cornell's rule of thumb: a hot spot more than 24 hours old is probably infected and needs a vet.
Are hot spots on dogs contagious?
No. Hot spots are not considered contagious to other pets or people, because the bacteria on the sore normally live on your dog's own skin and cause trouble only after licking and scratching break the surface (Merck Veterinary Manual). The trigger is another story: fleas spread between pets, so treat every animal in the home.
Two look-alikes, ringworm and sarcoptic mange, are contagious, which is another reason to have the sore checked. Wash your hands after cleaning any sore.
Are hot spots dangerous for dogs?
A hot spot is painful but rarely dangerous on its own, and veterinary dermatologists don't consider it life-threatening (Virginia-Maryland College of Veterinary Medicine).
The risk is what it can become: left untreated, it can turn into a deeper skin infection that takes weeks of antibiotics to clear. Pus, a bad smell, fast spreading or a dog that seems unwell all call for a same-day vet visit.
What is a good home remedy for hotspots on dogs?
The best home remedy is first aid: clip the hair around the sore, clean it with dilute chlorhexidine, pat it dry and fit a cone so your dog can't lick it.
A cool compress (a clean cloth soaked in cool water or saline, held on for a few minutes) can ease the discomfort before you clean. Skip vinegar, peroxide, alcohol and essential oils, and book a vet visit if the spot isn't clearly drying within a day or two.
Does vinegar help with hotspots on dogs?
No. Apple cider vinegar is acidic, so on an open hot spot it stings raw skin and can irritate it further. It also isn't what vets use: they clean hot spots with an antiseptic such as chlorhexidine.
A veterinarian writing for PetMD also warns that vinegar can irritate a dog's skin and upset the stomach when it's licked off.
What is a natural antibiotic for a dog without a vet?
There isn't a safe home substitute for an antibiotic when a hot spot is infected. Most early hot spots don't need antibiotics at all: antiseptic cleaning with dilute chlorhexidine and a cone are the home steps, and topical antiseptics are now the treatment vets prefer for hot spots.
Medical-grade honey is used on bandaged wounds in veterinary care, but it has no proven benefit by mouth (Merck Veterinary Manual). Honey is not a hot spot remedy either, since it keeps the sore moist and invites licking.
Never give human antibiotics unless your vet prescribes them: amoxicillin and similar drugs are poor choices against the staph bacteria behind dog skin infections, and the wrong drug or dose can harm your dog.
Will Benadryl help my dog's hot spot?
Benadryl (diphenhydramine) is an antihistamine that may take the edge off allergic itch in some dogs, but it does not treat infection or dry the sore, so it won't clear a hot spot on its own.
Ask your vet before giving it; they'll confirm it's safe for your dog and set the dose. Our guide to Benadryl for dogs explains which products to avoid.
Are hot spot sprays like Vetericyn or Vet's Best safe for dogs?
They're very different products, so compare the ingredients. Vetericyn Plus Antimicrobial Hot Spot Spray contains hypochlorous acid in electrolyzed water, and its maker says it has no steroids, antibiotics, alcohol or tea tree oil and is safe if licked (Vetericyn).
Vet's Best Hot Spot Spray is an alcohol-free blend of tea tree oil, aloe vera and chamomile (Vet's Best).
Tea tree oil is the essential oil most often reported in pet poisonings, and the risk rises with concentration (Merck Veterinary Manual), so ask your vet before using a tea tree product on an open sore your dog can lick. Neither spray replaces clipping, cleaning and a cone.
Can I put Bag Balm on my dog's hot spot?
Not on an open, weeping hot spot. Bag Balm Pet Nose, Paw and Hot Spot Moisturizer is marketed for hot spots, but Bag Balm is a petrolatum and lanolin balm, with paraffin and a small amount of 8-hydroxyquinoline sulfate (Bag Balm).
A greasy balm traps moisture against a sore that needs to dry, and Cornell's first-aid advice specifies a cream rather than an ointment. Save balms for dry noses and pads on healthy skin.
Is witch hazel safe for hot spots on dogs?
Only if you ask your vet first, and only the right kind. Witch hazel is an astringent, but many drugstore witch hazels contain alcohol (the classic Dickinson's formula lists 14% grain alcohol), and alcohol stings a raw sore.
If your vet agrees, use an alcohol-free witch hazel on a small, early spot, never on a raw, oozing or infected hot spot, and stop if your dog flinches.
Veterinarian · BVSc MRCVS
Grace graduated from the University of Liverpool in 2022. She works as a small animal vet in London and has published research in the Veterinary Record. She enjoys consulting and operating on dogs, cats, and exotic pets. Beyond clinical practice, she applies her expertise as a veterinary writer and mentors aspiring veterinary students.
Veterinarian · BVMS MRCVS
Dr. Pippa Elliott, BVMS, MRCVS, is a veterinarian with nearly 30 years of experience in companion animal practice. Dr. Elliott earned her Bachelor of Veterinary Medicine and Surgery from the University of Glasgow. She was also designated a Member of the Royal College of Veterinary Surgeons. Married with 2 grown-up kids, Dr. Elliott has a naughty Puggle named Poggle, 3 cats and a bearded dragon.
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