Two cases of Hidradenitis suppurativa and botulinum toxin type a therapy: A novel approach for a pathology that is still difficult to manage.

Hidradenitis suppurativa is a chronic skin disease with an intense inflammatory activation. It typically affects the intertriginous areas with cysts, fistulae, and scarring extremely painful. Patients suffer from severe psychological impact. HS still results in a high unmet medical need with several underdiagnosed cases, probably due to the incomplete knowledge of the pathogenesis of HS. The use of botulinum toxin a has recently been proposed as an effective therapy for HS.