It is estimated that about 75% of allergies are associated with eyes, which are mostly hereditary. These allergies are mainly caused by pollen, mold, dust, pet dander, foods, bee stings and even certain eye drops. Most of them are airborne. If you are allergic to eye drops, they are most likely to contain preservative.

Most of the allergies involve people’s eyes and noses, such as red, swollen, or itchy eyes, and runny, itchy nose. Others include sneezing, coughing, headache, and itchy mouth or throat. More severe conditions may be conjunctivitis and rhinoconjunctivitis. Not all substances that cause allergy are harmful, such as dust. Their harmful effects may come from the people’s overreaction.

The simplest way to “treat” allergies is avoiding the allergens, such as pet dander and pollen. And individuals can wear wraparound sunglasses to get protection. Once you have suffered from allergies, medications such as eye drops can help you alleviate the symptoms. Over-the-counter medications are always cheaper, while prescription medications are more effective. And antihistamines are always effective in treating airborne allergies, such as itchy, watery eyes and so on.

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