Pilonidal cysts are unique boils that develop near your tailbone as a result of sitting for long periods or ingrown hairs. These pus-filled cysts can get infected and cause pain and swelling. Medical ...
These are known as furuncles. “These are painful, red, swollen boils with pus. Recurrent furunculosis means that after one boil resolves and drains, another one appears in the same or ...