Dog Hot Spots: Why They Appear, How to Stop the Scratch Cycle, and When to Get Help
Recognise acute moist dermatitis early, reduce self-trauma, and avoid home treatments that worsen infection.
Hot spots (acute moist dermatitis) are painful, rapidly spreading, moist skin lesions often triggered by itching, moisture, or self-trauma. Dogs lick or chew a small irritation into a raw, oozing patch within hours. Clip and clean only as a veterinarian advises; human creams and thick ointments can trap infection. Address fleas, allergies, and ear pain so the cycle does not restart.
Key takeaways
- Hot spots expand fast—early veterinary care shortens recovery.
- Stopping licking (cone or suit) is as important as topical care.
- Find the trigger: fleas, moisture under the coat, anal glands, ears, or allergies.
What a hot spot looks like
- Red, moist, painful skin
- Hair loss over a spreading patch
- Odour and discharge
- Intense licking or chewing at one area
During virtual consults, owners often notice a “small wet spot” in the morning that is large by evening. That speed is typical.
What not to do
- Do not pack the area with thick human creams unless directed
- Avoid alcohol, hydrogen peroxide, or essential oils on open skin
- Do not ignore underlying fleas or ear disease
Need coat-care support while skin heals?
Our Grooming Guidance pathway covers practical hygiene habits that support veterinary treatment plans. Message us on WhatsApp if hot spots keep returning.
- Rapid spread, fever, or marked lethargy
- Lesions near the eyes or genitals
- Repeated hot spots despite basic care
Educational content only. This page does not diagnose disease or replace care from a licensed veterinarian. Seek in-person help for emergencies or worsening symptoms.