Dapsone gel is a topical medication primarily used to treat acne. It works by reducing inflammation and targeting bacteria that contribute to acne formation. Dapsone is part of the sulfone class of antibiotics, and its anti-inflammatory properties help decrease the number of acne lesions and promote clearer skin. It is applied directly to the affected areas and is typically well-tolerated, with mild side effects like skin dryness or irritation in some cases.