The efficacy of Botulinum toxin-A (BTX-A) therapy in axillary hyperhidrosis has been documented; however, there are a few studies reporting the efficacy of BTX-A in treating axillary bromhidrosis. The histological changes occurring in sweat glands after BTX-A treatment are also unknown.

We report on the efficacy and safety of BTX-A in the treatment of axillary bromhidrosis and on the histological changes in sweat glands after BTX-A treatment.