Lil Kitty Allergies?

hey there again,
Kash has ran into some more trouble. her left eye is really extremely watery, and it looks like she is crying, after a while it dries and turns to goop around her nose, but its only her left eye. It just started so thats why we were wondering about if it was a kitty allergy. We're taking her to the vet later on this week to see about if its an allergy or just a watery eye, and plus she needs another booster. what do you guys think about the eye?

If it's an allergy, I think it would be both eyes, wouldn't it? I'm thinking it's an eye infection. The vet should be able to help you out on this one.