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My cat has a red, hard sore in the corner of her mouth. What is it?

Updated On September 23rd, 2025

Pet's info: Cat | American Shorthair | Female | spayed | 13 lbs

Hard, red sore in the corner of her mouth

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1 Answer

Most Helpful Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on March 16th, 2019

This presentation could be due to a trauma or localized spot of skin infection (likely to be caused by bacteria or fungal). A check up, appropriate disinfection and possibly antibiotics or antifungal meds (oral, topical or in a shampoo formulation) are needed to solve the problem. I cannot rule out a more complex disease at this stage, like an allergic or autoimmune disorder which requires a full physical examination to be detected. Buster collar may be useful as well to avoid any scratching (if any). Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

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