Allergic Conjunctivitis: Causes, Treatments, and Top Medications
When your eyes turn red, itchy, and watery—especially during spring or around pets—you’re likely dealing with allergic conjunctivitis, an inflammation of the eye’s surface triggered by allergens like pollen, dust, or pet dander. Also known as ocular allergy, it’s not contagious but can feel just as annoying as an infection. Unlike bacterial or viral pink eye, this isn’t caused by germs. It’s your immune system overreacting to something harmless, releasing histamine and other chemicals that make your eyes swell and burn.
People with hay fever or eczema often get it, and it usually hits both eyes at once. The key signs? Intense itching, puffy eyelids, clear discharge, and sensitivity to light. You won’t see thick yellow gunk like with an infection. Instead, you’ll reach for antihistamine eye drops or mast cell stabilizers—two types of meds that block the allergic response before it starts. Ketotifen fumarate, a common over-the-counter and prescription eye drop used to treat allergic conjunctivitis, works by stopping mast cells from releasing histamine. It’s one of the few eye drops that do both jobs: relieve symptoms fast and prevent them from coming back.
Other treatments include cold compresses, avoiding known triggers like outdoor allergens or certain cosmetics, and sometimes oral antihistamines. But eye drops are usually the first line of defense because they target the problem right where it happens. Some people mix up allergic conjunctivitis with dry eye or irritation from screen use—so getting the right diagnosis matters. If you’ve tried artificial tears and it’s still burning, you might need something stronger.
What you’ll find below are real comparisons between allergy eye drops, including how ketotifen stacks up against older options, what works for kids, and which ones are safe for long-term use. You’ll also see how these treatments connect to broader allergy management—like avoiding sulfonamide drugs if you have a sulfa allergy, or how certain medications can worsen eye symptoms. This isn’t just a list of products. It’s a practical guide to understanding what’s really going on in your eyes and how to fix it without overdoing it.
Topical Antihistamine Eye Drops: Side Effects and Proper Use
Learn how topical antihistamine eye drops work, which brands are best, how to use them safely, and when to see a doctor. Get facts on side effects, OTC vs prescription options, and long-term risks.