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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

Jenna Beyer, DVM, MBA, cVMA

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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