My cat has a rash under his mouth like on his chin.. it’s a little red with some inflammation.. what is that? And what can I do? Pet's info: Cat | Russian Blue | Male | unneutered | 8 months and 6 days old | 3 lbs

It could be feline acne, an allergic dermatitis, skin infection, etc. You could clean the area with a dilute chlorhexidine solution and see if that helps but she may need oral medications to treat. She may need an antibiotic, anti-histamine, and/or a corticosteroid to help treat the condition and your vet can prescribe.

My cat has a red rash under its chin. What is it and what can I do?

Updated On September 23rd, 2025

My cat has a rash under his mouth like on his chin.. it’s a little red with some inflammation.. what is that? And what can I do?

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Answered By Dr. Melanie, BVSc MS 102

Veterinarian

Published on January 7th, 2018

Milo is a very handsome cat! There could be a couple of reasons why he has this rash under his mouth. It could be caused by a skin infection from bacteria or yeast, it could be due to feline acne, or it could be due to allergies among other causes. The best thing to do is have him seen by a vet for it to diagnose what is causing the rash. Once the cause is found, the vet can prescribe a treatment for it. I would gently clean the area with warm water and antiseptic soap tonight, and if he's scratching at it, put an Ecollar on him. Scratching at it will make it worse and infected. I will put a link below on how to make an Ecollar at home, or you can get one at a pet store. Have him seen by a vet either Monday or Tuesday. Good luck, I hope this helps! https://www.youtube.com/watch?v=8ffR-LzyW1M

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My cat has a red rash under its chin. What is it and what can I do?

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