Which treatment is commonly used for allergic conjunctivitis?

Topical antihistamines are commonly used to treat allergic conjunctivitis because they help alleviate symptoms associated with the allergic response. Allergic conjunctivitis is typically characterized by symptoms such as itching, redness, and swelling of the conjunctiva due to allergens like pollen or pet dander. Topical antihistamines work by blocking the action of histamine, a chemical released during an allergic reaction that contributes to these symptoms. By reducing the effects of histamine, topical antihistamines provide targeted relief, thus improving patient comfort and eye health.

Other treatments like oral steroids or topical antibiotics are not primary options for allergic conjunctivitis. Oral steroids might be considered in severe cases of allergic reactions but are not the first line due to potential side effects. Topical antibiotics are used for bacterial infections rather than allergic conditions, as they do not address the underlying allergic response. Cool compresses can provide relief from symptoms like itchiness and swelling, but they do not treat the underlying allergic reaction itself. Therefore, topical antihistamines are the most appropriate choice for managing allergic conjunctivitis.