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My cat has painful mouth ulcers and struggles to eat. What can I do?

Updated On September 23rd, 2025

Pet's info: Cat | Siamese | Male | neutered | 8 lbs

Cat was seen by vet and diagnosed with mouth ulcers. Was given po antibiotics and injectable steroid. I'm guessing that it's a viral problem similar to Herpes in humans so it's incurable the vet said. I puree his canned food and tried Lysin. He still has lots of trouble with pain while attempting to eat. Any other suggestions? Thank you!

1 Answer

Most Helpful Answer

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Answered By Kevin Sanada, DVM

Veterinarian

Published on April 10th, 2018

The ulcers are likely due to feline stomatitis, or a calicivirus infection. Without evaluating him, I can't make this diagnosis and would recommend consulting with your vet for more information about his specific condition. Stomatitis is a frustrating condition and the best remedy we have is often a full mouth teeth extraction. Antibiotics and steroids can be effective in some cases, but lysine has not shown to be effective. Either way, it sounds like poor Mr. Kitty is in need of pain control and further treatment, so it's best to take him for a recheck exam by your vet, so they can prescribe the necessary medication. Unfortunately, there is nothing more you can do for him at home. Below is a link to some more helpful information about the suspected conditions. https://vcahospitals.com/know-your-pet/gingivitis-and-stomatitis-in-cats https://vcahospitals.com/know-your-pet/feline-calicivirus-infection I hope that helps and Mr. Kitty gets better soon.

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