inversa or simply “HS” (now that’s a little easier), this inflammatory skin disease involves painful, boil-like cysts that form under the skin.
The areas of skin most often affected are the warm crevices of your body—your underarms, groin, buttocks, under-boob area, or inner thighs.
Talk about an uncomfortable situation: Caused by blockage of hair follicles and sweat glands, these red lumps can be unsightly, painful, and they can sometimes burst, drain pus, and lead to open lesions and scarring.
Other symptoms of hidradenitis suppurativa include blackheads and, in severe cases, abscesses and tunnels underneath the (known as fistulas or sinus tracts).