Beclometasone dipropionate is a corticosteroid medication used primarily to prevent and control inflammation. It is commonly prescribed in inhaled form for the long-term management of asthma and allergic rhinitis, and in topical formulations for inflammatory skin conditions. Beclometasone works by reducing swelling, redness, and irritation through suppression of inflammatory and immune responses. When used regularly as directed, it helps improve breathing and reduce symptoms, but it is not intended for immediate relief of acute asthma attacks. Proper use is important to minimize potential side effects.