Itchy allergy eyes happen when your eyes react to substances called allergens. Your immune system then releases a substance called histamines, causing the eyes to become itchy. Unlike other eye drops, Extra Strength Pataday targets the itch at the source and provides you with real, long-lasting relief. It works fast and lasts 24 hours. In fact, it works faster and outperforms leading oral and nasal allergy medicines (like Claritin and Flonanse) for eye allergy itch relief, even at 24 hours.**Based on conjunctival allergen challenge vs. Claritin Tablets and Flonase Allergy Relief at 15 minutes and 24 hours post-treatment.
