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What's causing your eye allergy itch?

Eye allergy itch, a symptom of allergic conjunctivitis, occurs when your eyes react to substances called allergens. Your immune system then releases a substance called histamine and other active substances, causing the eyes to become itchy. Twenty percent of the US population may be affected by seasonal allergic conjunctivitis, and itchy eyes is a hallmark symptom.

Common allergens that can cause itchy eyes


Found seasonally (spring through fall)


Pollen travels through the air when trees, weeds, and grasses release it in tiny grains to fertilize other plants.

Dust mites

Found year-round


Dust mites are commonly found in warm, humid areas of the house, most often the bedroom.


Found year-round


Mold commonly grows near damp areas such as the bathroom, kitchen, or basement.


Mold grows on rotting logs, in compost piles, and on grasses and grains.


Found year-round

Your car, house, and public areas

Proteins found in a pet's dander (dead skin cells), saliva, and urine can cause an allergic reaction.



Find out your local pollen forecast

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PAZEO® Solution is a prescription medicine used to treat eye itching associated with eye allergies. The recommended dosage is to put one drop in each affected eye once a day.


Do not touch dropper tip to eyelids or surrounding areas. Touching may contaminate the dropper tip and PAZEO® Solution. Keep the bottle tightly closed when it is not in use.

Do not wear contact lenses if your eyes are red. PAZEO® Solution should not be used to treat contact lens-related irritation. Always remove your contact lenses before administering PAZEO® Solution.

PAZEO® Solution contains the preservative benzalkonium chloride (BAK). BAK may be absorbed by soft contact lenses. If you wear soft contacts, and your eyes are not red, you should wait at least five minutes after administering PAZEO® Solution before inserting your contacts.

In a clinical study with PAZEO® Solution, the most common side effects occurred in approximately 2% to 5% of patients. These side effects were blurred vision, dry eye, superficial punctate keratitis (a type of inflammation of the front part of the eye), impaired taste, and abnormal sensation in the eye.

You are encouraged to report negative side effects of prescription drugs to FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.

For additional information on PAZEO® Solution, please click here to view the full Prescribing Information.

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