Naphcon A Antihistamine Eye Drops, the eye drop formerly prescribed by doctors, now is available without a prescription. These eye drops combine an antihistamine and a redness reliever for the temporary relief of itchy, red eyes. Comes in a pocket size, making it convenient to take anywhere. This product has been clinically proven to relieve itching and redness of the eyes. The decongestant constricts (narrows) the blood vessels, which reduces eye redness.The antihistamine works by blocking the action of histamine, which helps reduce symptoms such as watery, itchy eyes
