Get fast eye allergy itch relief with Extra Strength Pataday, the first and only 24-hour eye allergy itch relief drop available without a prescription. A single drop of Extra Strength Pataday relieves itchy eyes caused by pollen, ragweed, grass, animal hair and dander. Extra Strength Pataday works a full 24-hours to relieve itchy eyes and to prevent the release of histamines that cause the itch. Children under 2 years of age: consult a doctor.