Eye allergens are out there. 24-hour eye allergy itch relief is here. Pataday® Once Daily Relief Extra Strength is the first and only 24-hour eye allergy itch relief drop available without a prescription in the U.S. Get fast eye allergy itch relief with Pataday® Once Daily Relief Extra Strength, the first and only full 24-hour eye allergy itch relief drop available without a prescription. A single drop of Pataday® Once Daily Relief Extra Strength features the ingredient doctors prescribed most for eye allergy itch relief caused by pollen, ragweed, grass, animal hair and dander. Pataday® Once Daily Relief Extra Strength is applied directly to the eye to reduce itchy allergy symptoms fast by working directly on the cells that make eyes itch for a full 24-hours. HSA/FSA EligibleRestrictions apply; contact your insurance provider about plan allowances and requirements.