Alcon Naphcon-A allergy relief eye drops are a hugely beneficial treatment for a range of allergic reactions that cause redness and puffiness in the eyes. These allergy eye drops help reduce itching and watering caused by pollen, pet hair and other airborne irritants. The convenient 0.5-ounce eye drops bottle fits in easily in your purse or pocket, so you never need be caught by allergic flare-ups while out and about. Alcon Naphcon-A Allergy Relief Eye Drops are sterile and clinically proven. The eye drops formerly prescribed by doctors now available without a prescription. Combines an antihistamine and a redness reliever for the temporary relief of itchy, red eyes.