What is commonly used to treat allergic conjunctivitis?

Antihistamine drops are commonly used to treat allergic conjunctivitis because they specifically target the histamine receptors that are involved in allergic reactions. When allergens such as pollen or pet dander come into contact with the eye, they trigger the release of histamines, leading to symptoms such as itching, redness, and swelling. Antihistamine drops work by blocking these histamine receptors, providing relief from the itching and discomfort associated with allergic conjunctivitis.

While antibiotic drops are effective in treating bacterial infections, they do not address the underlying mechanism of allergic reactions. Beta-blocker drops are typically used to manage intraocular pressure in conditions like glaucoma and are not relevant in treating allergic symptoms. Artificial tears can provide symptomatic relief by lubricating the eye and washing away allergens, but they do not specifically address the histamine response that characterizes allergic conjunctivitis. Therefore, antihistamine drops are the most appropriate treatment for this condition.