Beconase AQ is an effective nasal spray used to manage and relieve symptoms of allergic rhinitis and other nasal allergy conditions. The active ingredient, beclomethasone dipropionate, is a corticosteroid that works by reducing inflammation and the body's immune response to allergens, thus easing nasal congestion, sneezing, itching, and runny nose. Manufactured by leading pharmaceutical companies, Beconase AQ is also available under other brand names such as Budenase AQ, Beclate Aquanase, and Bemson.