I have a little girl who's got allergies. Her eye(s) waters frequently and there's hardly a day goes by that she's not sneezing. As long as it's clear, she's eating, drinking, playing, and using the litterbox normally, she's fine. If she's got any colored discharge, she starts sleeping excessively, isn't enthusiastic about eating, and I can hear the congestion, then she goes to the vet. To top it off, she also has herpes, which just exacerbates the problems. She's been on 2, 21-day rounds of antibiotics so far this year. If I'd taken her to the vet everytime her eye(s) watered and she sneezed, I'd be in the poor house!!