Keep an eye on it

Red, inflamed skin in dogs

Clinical name: Erythema

Pink-to-red flushed skin, usually where the coat is thin.

Red, inflamed skin in dogs — what it can look like
What it can look like. A general, vet-reviewed example — signs vary and this is not a diagnosis. When in doubt, ask your vet.
Where it shows upbelly · armpits · groin · paws
Typical patternBelly, armpits, groin and between the toes.
Linked allergy typesEnvironmental (atopy) · Food allergy · Contact allergy
Food vs environmentalNon-specific; pattern over time matters more.

What you can do

Photograph it so you can track whether it spreads.

Don't confuse it with

Other causes a vet will want to rule out: heat rash, infection, contact irritant.

This is educational information, not a diagnosis or treatment plan. Always see your veterinarian about your dog's health.