Efficacy of oral zinc and nicotinamide as maintenance therapy for mild/moderate hidradenitis suppurativa: A controlled retrospective clinical study

To the Editor: Hidradenitis suppurativa (HS) is a chronic cutaneous disease that involves follicular occlusion in the apocrine gland-bearing regions. Treatment is a challenge because of the paucity of effective therapies and frequent exacerbations, with a negative impact on quality of life.1 Brocard et al2 first described zinc gluconate (90 mg daily for 4 months) as an effective therapeutic alternative for the management of HS. In our study, the efficacy of oral zinc and nicotinamide as maintenance treatment in mild to moderate HS was investigated retrospectively.