Hot spots on dogs: what they are, what to do, and how to prevent them

A hot spot is a patch of skin that has broken down fast — often overnight — into a red, raw, weeping sore. The medical name is acute moist dermatitis. Your dog found one spot that itched or hurt, started licking or chewing it, and the moisture from saliva made the bacterial infection worse. The patch can go from a small irritated area to a large, matted, painful wound in 12 to 24 hours. That speed is what makes hot spots alarming. It also explains why ignoring it for a few days is not a good idea.

The practical answer to “what do I do?” is: see a vet. The affected area usually needs to be clipped and cleaned, the infection needs to be assessed, and some cases need medication. Treating a hot spot at home without professional assessment risks letting it get significantly worse.

Why Indian dogs get hot spots more

Hot spots are not uniquely an Indian problem, but the conditions here make them more likely. Constant warmth and high humidity — especially from June to September — create the ideal environment for the bacteria that colonise a broken patch of skin. Thick-coated breeds imported into the Indian climate suffer more: Golden Retrievers, German Shepherds, Huskies, Saint Bernards, and heavy-coated Indie mixes all trap moisture under their fur. After a bath, a swim, or simply a rainy walk, if the undercoat does not dry fully, you have damp warm skin sitting under insulating fur for hours. That is exactly where hot spots start.

Ears, the base of the tail, the neck under the collar, and the hip area are common sites. If your dog has been swimming or got caught in the rain, check these spots before the coat dries completely.

What a vet does — and why it matters

At the clinic, the vet will typically clip the fur around the hot spot so the area can breathe and be properly cleaned. This alone helps significantly because fur over a wet wound keeps it moist and warm. The site is then cleaned with an appropriate antiseptic solution.

Depending on severity, your dog may be prescribed a topical antibiotic or antifungal, or an oral antibiotic if the infection is deep or spreading. An e-collar (the cone) is usually non-negotiable because continued licking will undo everything. Some dogs with a severe reaction also need a short course of steroids to bring the inflammation down quickly — this is a vet call, not something to self-prescribe.

Do not put home remedies — tea tree oil, turmeric paste, coconut oil — directly on an open, infected wound. Some of these are irritants on broken skin.

Why hot spots keep coming back

This is the part most dog parents miss. A hot spot is not a root cause — it is what happens at the end of a chain of events. The underlying driver is almost always persistent itch. Your dog keeps scratching or chewing a spot because something is making them itch: fleas, environmental or food allergies, or skin that is generally reactive and inflamed.

Fleas are especially worth mentioning. A single flea bite can cause intense itching in a sensitised dog through flea allergy dermatitis, and India has a year-round flea season. If flea control is not consistent, the itch will keep coming back and so will the hot spots.

Allergies — both food and environmental — are the other major driver. These are worth investigating with your vet if hot spots keep recurring, especially if your dog also licks their paws or has generalised itchy skin. Identifying and addressing the underlying trigger is the only way to break the cycle.

The gut-skin connection

There is a reasonably well-supported concept in veterinary medicine called the gut-skin axis — the idea that the state of the gut microbiome influences skin barrier function and how the immune system responds to triggers. A gut that is out of balance can contribute to a skin barrier that is more reactive and less resilient. You can read more about how we think about this at TrueWag on our science page.

This is not a replacement for treating the underlying allergy or controlling parasites. Those steps come first, and they require a vet. But once the acute issue is managed, supporting gut health as part of a longer-term approach to skin health is something worth discussing with your vet. We formulate TrueWag with this in mind — you can see what goes into it on our ingredients page. As with any animal feed supplement, it supports health; it is not a medicine and does not treat disease.

Practical prevention

• Keep your dog’s coat dry. After a bath or rain walk, dry the coat thoroughly — especially in thick-coated breeds. A hairdryer on a cool or warm setting used to dry the undercoat takes extra time but matters.
• Stay consistent with parasite control year-round. In India, there is no “off season” for fleas.
• Check for early irritation before it escalates. Run your hands through your dog’s coat regularly, especially around the ears, tail base, and neck. A patch of warm or slightly matted fur can be an early sign.
• Address the underlying itch. If your dog scratches chronically, see a vet. Antihistamines, dietary changes, allergen avoidance, or other interventions may make a genuine difference.
• For turmeric and other home remedies, be cautious about applying anything topical to irritated or broken skin without veterinary guidance.

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