What is considered a first-line treatment for seasonal/allergic conjunctivitis?

Oral antihistamines are a primary treatment for seasonal and allergic conjunctivitis due to their effectiveness in alleviating the symptoms associated with allergic reactions. These medications work by blocking the action of histamine, a compound released during an allergic response, which helps to reduce itching, redness, and allergic conjunctival irritation.

In addition to their systemic effects, oral antihistamines can provide significant relief from symptoms of allergic conjunctivitis, making them a convenient first-line option for patients. They are particularly useful for treating widespread allergic reactions, including those affecting the eyes, and can help manage symptoms quickly as they are absorbed into the bloodstream.

Other treatments, such as topical corticosteroids and topical antibiotics, may be employed in specific cases but are not considered first-line for managing seasonal or allergic conjunctivitis. Corticosteroids can be effective for more severe inflammatory responses, while antibiotics are only necessary if there is a bacterial infection, which is not typical in allergic conjunctivitis. Cold compresses can be beneficial for symptomatic relief but do not address the underlying allergic response in the way oral antihistamines do.