This article describes an observational study conducted in North India to investigate the dermoscopic features and treatment outcomes of sweat dermatitis. Sweat dermatitis is a type of irritant dermatitis caused by excessive stagnant sweat due to high temperature and low humidity. The study included 10 patients diagnosed with sweat dermatitis, who presented with dry, fissured, hyperpigmented plaques. Dermoscopic evaluation revealed erosions with brown crusting in a linear or hexagonal pattern during the active stage, and greyish-brown scaling on a background of erythema during the resolving stage. Treatment with mometasone furoate cream and antihistamines resulted in complete resolution of symptoms within 7 days for most patients. The study highlights the importance of early diagnosis and management of sweat dermatitis using dermoscopy as an adjunct tool. [Extracted from the article]