Red eye (allergy) cure?

I have horrible seasonal allergies. My eyes are very red and very watery today. Normally, I'd suck it up but today is my first day at my first job! (I'm 17.) I don't want to walk in to the restaurant and have them think I have pink eye, or that I'm high. What is a quick way to solve this problem?

I have been taking allergy pills. I've almost been overdosing on them (taking 2 or 3 daily instead of just 1.) I have liquid tear eye drops but they don't do much.