Carbuncle Signs

A carbuncle is a skin infection that often involves a group of hair follicles. The infected material forms a lump, which occurs deep in the skin and may contain pus. When a person has many carbuncles, the condition is called carbunculosis. A carbuncle is a swollen lump or mass under the skin. It may be the size of a pea or as large as a golf ball. The carbuncle may be red and irritated and might hurt when you touch it.

It may also:
Grow very fast
Have a white or yellow center (contain pus)
Weep, ooze, or crust
Spread to other skin areas

Sometimes, other symptoms may occur. These may include:
Fatigue
Fever
General discomfort or sick feeling
Skin itching before the carbuncle develops.