Picture of Hidradenitis Suppurativa
Hidradenitis suppurativa is a condition in which there are multiple abscesses that form under the armpits and often in the groin area. These areas are a result of local inflammation of the sweat glands. This form of skin infection is difficult to treat with antibiotics alone and typically requires a surgical procedure to remove the involved sweat glands in order to stop the skin inflammation.
Image Source: Image reprinted courtesy of eMedicine, 2008
Text: "Boils", MedicineNet