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Why is my cat's bottom lip swollen and Benadryl isn't working?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 1 year and 2 months old | 14 lbs

My cats bottom lip is swollen. Its happened before. He wad allergic to plastic. Is this the same? Its been about a week. And i tried liquid Benadryl.

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1 Answer

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on September 28th, 2018

Benadryl will not help, it's probably allergy related indeed, it's a common problem in cats (may be autoimmune related as well), as long as it does not bother him there is usually no reason to treat it, if it gets worse or affects his appetite you will need to take him to the vet for a steroid injection.

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