Summary: Hidradenitis suppurativa (HS) is a chronic, severe, inflammatory skin disease associated with pain, drainage, odor, and disability characterized by recurring abscesses, nodules, and tunneling sinuses in intertriginous locations such as the groin, buttocks, and axillae. HS has more negative impact on patients' quality of life than all other common dermatologic diseases and is common, affecting1% of...