What to do about severe eye burning sensation?

I really don’t know what to make of this problem. I am okay and then suddenly out of the blue, my eyes begin to water, burn unbearably, become red and I have to stop wherever I am, pull over if I am driving and dab a bit of water on the eyes(I always carry a bottle of water and Kleenex with me). The moment the water is dabbed on, like magic, the red, itching, burning eyes become better and I can go on. What can I do? I have tried anti-allergic drops and other kinds of eye drops but nothing works. I has become a serious problem! Help!