In the spring and fall, pollen and dust mites bother our eyes, causing redness, itching, tearing and swelling. How do eye drops for allergies work: Antihistamines: They reduce histamine, a chemical released by the immune system during an allergic reaction. Decongestants: They reduce inflammation and swelling in the blood vessels of the eyes. Lubricants: They soothe irritation and moisturize the eyes.
In spring and autumn, pollen and mites bother our eyes, causing redness, itching, tearing and...