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My cat has a recurring runny eye but seems fine. What should I do?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Female | spayed | 11 years and 1 month old | 12 lbs

Hi there, my female cat has an ongoing runny eye. I have taken he to the vet for this before and was prescribed congunctivitus cream that was primarily for human use, at £90. It did clear up but is back again. It doesn't seem to bother her at all and I wash it with boiled and cooled water. Can you recommend the best thing to do please?

1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on August 9th, 2017

Excess tearing can be caused by a few different things, commonly including allergies, blocked tear duct, bacterial or viral infection. If there is a creamy discharge, if Pipsi is squinting often or experiences light sensitivity, or her eye appears very red, I recommend that she be evaluated by a vet. If those symptoms are not present and she seems comfortable, you can continue to clean the area with water. Sometimes viral infections that cause eye issues can respond to a lysine supplement. You can try a product like Vetri-Lysine Plus, but it may take a couple weeks for the virus to stop replicating after starting lysine.

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