Hidradenitis suppurativa, is a chronic inflammatory skin condition with lesions, deep-seated nodules and abscesses, draining tracts, and fibrotic scars. These lesions most commonly occur in intertriginous areas and areas rich in apocrine glands. Among the most common are the axillary, groin, perianal, perineal, and inframammary locations.
Treatment varies based on severity, but due to pain, sensitive locations, drainage, odor, and scarring, this condition also has a negative psychosocial impact.1
https://www.ncbi.nlm.nih.gov/books/NBK534867/