What is the best allergy treatment for eyes i mean the best eye drops for allergy. not over-the-counter drugs. oral antihistamine alone not helping.

Allergy eye drops: There are many good choices like Pataday, Lastacaft, (alcaftadine) Bepreve, Elestat, Optivar, and Zaditor to name a few. Any of these can be helpful. I often prescribe Pataday first, but you should discuss with your Allergist or ENT doctor.

Patanol (olopatadine): I prefer patanol (olopatadine) drops. There are others which are similar. The important thing is to wash your face with a cool wash cloth before applying to remove any lingering allergens from your facial skin and around your eyes. This helps my patients a great deal. If you're not better with drops see an allergist for testing, you may want to consider allergy shots.