What is a hot spot on a dog?

A hot spot — also called pyotraumatic or moist dermatitis — is a patch of skin that's become inflamed and infected. It typically looks like a wet, oozing, reddened patch, often with hair loss. It's painful and very uncomfortable, and continued licking and chewing makes it worse fast.

What causes hot spots in dogs?

Anything that irritates the skin. Common triggers include allergies to grasses, trees, weeds, and dust mites; food allergies; fleas; mites; insect bites; and skin wounds. Once the skin is broken and inflamed, a bacterial infection takes hold underneath.

Why does a hot spot smell?

The infection is usually deep in the skin, and bacterial activity produces a distinct odour. Combined with the wet, oozing look, the smell is one of the giveaway signs that there's an active infection — not just irritated skin.

Can hot spots be prevented?

Largely, yes. Manage the triggers: stay on top of flea protection, watch for grass and pollen sensitivity, address food allergies, and treat any wound or bite immediately before it turns into a full hot spot. Applying Skin Rescue Lotion at the first sign of a bite or sore prevents the bacterial cascade.

How do I treat a hot spot at home?

Clip the hair over and around the spot so the area can dry and you can see its true extent — this is standard practice and it matters. Clean the area gently. Apply DERMagic Hot Spot Salve once or twice daily, and stop the dog licking it off. Small, surface hot spots caught early usually dry up within a few days.

When does a hot spot need a vet rather than home treatment?

If it's larger than a few centimetres, spreading quickly, very painful to touch, oozing pus, or if the dog is unwell in themselves — lethargic, off food, feverish. Deep pyoderma and cellulitis can look like a hot spot at first and need systemic antibiotics and pain relief. Recurrent hot spots also need a vet, because they usually mean an unmanaged underlying allergy.

Hot Spots on Dogs and How to Treat Them

Name: Dermagic Europe
Address: Eurobase House, 312 Cork Rd, IDA Industrial Estate, Waterford, X91 EH5N, IE
Telephone: +44 7425 388643

July 13, 2013 · Skin Conditions, Hot Spots, The Dermagic System

Hot spots on dogs — what triggers them, why they spread so quickly, and the natural treatment that clears the infection and lets the skin heal.

A hot spot is a wet, painful, infected patch of skin that can spread alarmingly fast. Here’s what triggers them, how to stop the cycle, and the natural treatment that clears the infection.

What a hot spot is

A hot spot — also referred to as pyotraumatic or moist dermatitis — is a condition where a patch of skin has become inflamed and infected.

The affected skin is typically seen as a wet, oozing, reddened patch that’s painful and very uncomfortable for the dog. Hair loss may also be visible across the spot.

Continued licking and chewing at the affected area worsens the condition dramatically. That’s why a hot spot you spotted yesterday morning can look twice as bad by the evening.

What causes hot spots — and can they be prevented?

Hot spots in dogs are caused by anything that aggravates or itches the skin. Some common triggers:

Allergies — grasses, trees, weeds, dust mites, and other environmental allergens
Food allergies
Fleas and mites
Insect bites
Skin wounds and minor abrasions

Once the skin is broken and inflamed, a bacterial infection moves in — taking advantage of the disrupted skin barrier. The infection is usually deep within the dog’s skin, and in addition to the wet, oozing appearance, there’s often a distinct odour present.

Prevention is largely about catching the triggers early. Stay on top of flea protection. Watch for grass and pollen sensitivity in season. Address food allergies through an elimination diet. And treat any bite, sore, or red patch the moment you see it — before it gets bad enough to call a hot spot.

When to call the vet

Most small hot spots caught early are a reasonable thing to treat at home. Some are not, and it’s worth knowing which is which before you reach for anything.

Get veterinary help if the lesion is larger than a few centimetres, spreading noticeably by the hour, very painful to touch, or discharging pus rather than clear fluid — or if the dog is unwell in themselves: lethargic, off their food, or feverish. Deep pyoderma and cellulitis can start out looking like an ordinary hot spot, and those need systemic antibiotics and proper pain relief. A topical product is not a substitute and we won’t pretend otherwise.

Hot spots that keep coming back also warrant a vet visit, for a different reason: recurrence almost always means an underlying allergy that nobody has got on top of yet.

Treating a hot spot at home

For the straightforward ones, the protocol is:

Clip the hair over and around the spot. This is standard veterinary practice and it genuinely matters — trapped hair holds moisture against the lesion and hides how far it actually extends. Hot spots need air. Older versions of this page warned against clipping on the grounds that it “introduces more fungus”; that isn’t accurate and we’ve withdrawn it.
Clean the area gently with the Peppermint & Tea Tree Oil Shampoo or the Skin Rescue Shampoo Bar, and let it dry properly.
Apply DERMagic Hot Spot Salve directly to the spot once or twice daily. It’s concentrated and made to stick, so it stays put and keeps working.
Stop the dog licking it off with a soft t-shirt or similar cover. Nothing in the salve is harmful if ingested — it simply works better where you put it.

Most surface hot spots caught early dry up and start to heal within a few days of consistent application. If yours hasn’t improved in that time, that’s your signal to get it looked at.

And find the trigger

Clearing the spot is only half of it. Hot spots are almost always a symptom of something else — most often an allergy, a flea burden, or an ear problem the dog is scratching at. If you treat the lesion and change nothing else, expect another one.

Worth reading alongside this: dog skin allergies and, if the ears are involved, dog ear care.

Start the treatment DERMagic Hot Spot Salve Treat the spot — dermagic.eu →

For help with a particularly stubborn hot spot, email customerservice@dermagic.eu or call +44 7425 388643.

Frequently asked questions

What is a hot spot on a dog?: A hot spot — also called pyotraumatic or moist dermatitis — is a patch of skin that’s become inflamed and infected. It typically looks like a wet, oozing, reddened patch, often with hair loss. It’s painful and very uncomfortable, and continued licking and chewing makes it worse fast.
What causes hot spots in dogs?: Anything that irritates the skin. Common triggers include allergies to grasses, trees, weeds, and dust mites; food allergies; fleas; mites; insect bites; and skin wounds. Once the skin is broken and inflamed, a bacterial infection takes hold underneath.
Why does a hot spot smell?: The infection is usually deep in the skin, and bacterial activity produces a distinct odour. Combined with the wet, oozing look, the smell is one of the giveaway signs that there’s an active infection — not just irritated skin.
Can hot spots be prevented?: Largely, yes. Manage the triggers: stay on top of flea protection, watch for grass and pollen sensitivity, address food allergies, and treat any wound or bite immediately before it turns into a full hot spot. Applying Skin Rescue Lotion at the first sign of a bite or sore prevents the bacterial cascade.
How do I treat a hot spot at home?: Clip the hair over and around the spot so the area can dry and you can see its true extent — this is standard practice and it matters. Clean the area gently. Apply DERMagic Hot Spot Salve once or twice daily, and stop the dog licking it off. Small, surface hot spots caught early usually dry up within a few days.
When does a hot spot need a vet rather than home treatment?: If it’s larger than a few centimetres, spreading quickly, very painful to touch, oozing pus, or if the dog is unwell in themselves — lethargic, off food, feverish. Deep pyoderma and cellulitis can look like a hot spot at first and need systemic antibiotics and pain relief. Recurrent hot spots also need a vet, because they usually mean an unmanaged underlying allergy.

#Hot Spots #Pyotraumatic Dermatitis #Moist Dermatitis #Dog Skin Infection #Hot Spot Salve #Skin Rescue Lotion