Zyrtec Itchy Eye Relief Drops contain Ketotifen, an antihistamine that you can purchase over the counter to treat the symptoms of allergic conjunctivitis. This can include runny nose, watery, red eyes, and sneezing. When exposed to an allergen, your immune response detects a threat and releases histamine as a way of flushing it out of your body. Ketotifen works by attaching to receptors that are responsible for producing histamine which disables them. Zyrtec Itchy Eye Relief Drops work quickly and can be administered for seasonal or perennial conjunctivitis.

Seasonal allergies are mostly caused by various forms of pollen or molds that prevalent during the spring and summer. Perennial allergies can be due to smoke, scents, dust mites, and pet dander along with pollen and mold. Whatever the cause, your immune system thinks it is a danger and hopes to help you out by calling on histamine to cause your eyes to water and nose to run. The layer of clear mucous that covers your eyeballs and the inside of your eye lids is your conjunctiva. When histamine is released, the small capillaries dilate causing the whites of your eyes to look blood-shot.

Discuss Ketotifen with your doctor to be certain that this non-prescription drug is appropriate for your situation. List all other health issues you have and any current OTC or Rx medications you are on, including herbal remedies and vitamin supplements as they may interfere with the efficacy of Zyrtec Itchy Eye Relief Drops or cause unwanted side effects.