Overview A boil is a painful, pus-filled lump that forms under your skin when bacteria invade one or more of your hair follicles and inflame them. A carbuncle is a cluster of boils that form a related infection area underneath the skin. Boils (furuncles) usually begin as red, tender bumps. The bumps fill up with pus easily, becoming bigger and more painful until they burst and drain. The most likely places to be affected are the nose, neck back, armpits, thighs and buttocks. Symptoms of Boils A boil usually starts…
Read More