[Evaluation and management of hyperhidrosis]

Hyperhidrosis is excessive sweating beyond what is expected for thermoregulatory needs. Nearly 3 % of the population has hyperhidrosis. It may be primary or secondary to medications or general medical conditions, including diabetes mellitus, hyperthyroidism, Parkinson disease, etc. History taking and clinical examination are essential to differentiate primary from secondary origins. Blood tests and a consultation with a specialist (endocrinologist, neurologist) is sometimes necessary to establish the diagnosis. The management of secondary hyperhidrosis involves the treatment of the underlying cause. For primary hyperhidrosis, it depends on its severity and the sites affected. This article will review the treatments for primary hyperhidrosis.