Medically reviewed by Marisa Garshick, MD A carbuncle is a cluster of boils (furuncles) that form under the skin's surface when bacteria infect hair follicles (tiny openings on your skin through which ...

Generally, incision is made through most of the width of the abscess. Once skin incision is made, drainage is done as follows: An opening is made into the abscess using a sinus forceps or a closed ...