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My dog's mouth has red marks getting worse. What should I do?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | unspayed | 9 months and 28 days old

Hi. I little girl started showing marks on both side of her mouth and couple of days ago. I thought it was just from chewing on stick and she might of cut herself but today I notice they have gotten a little worst. Just curious to what it might be and what action I should take to make it better.

1 Answer

Most Helpful Answer

Ana M, DVM

Answered By Ana M, DVM

Veterinarian

Published on April 22nd, 2018

Thank you for submitting your question regarding Lucy. She may have a mild skin infection around her muzzle. If she has had any new treats or dog food she may be reacting to the diet change. This will be more common if she is experiencing irritated skin around her anus as well or if she has had any vomiting or diarrhea. If not, check her eyelid margins, ears and footpads for any lesions. These are commonly affected areas for autoimmune skin disease. If her skin does not heal or spreads, she will need to see her veterinarian. In the meantime, keep her muzzle clean and dry. I hope this information helps!
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