You can use cat-specific tear stain removal wipes or medicine, or you can use human products: chlortetracycline eye ointment, boric acid lotion, etc. to wipe and smear the parts of the cat with tear stains. It will take a few days to see them. Effect. Cat tear stains are a common disease with many causes. Owners should not panic. The main patient treatment is to turn the yellowed fur white.