Folliculitis is an inflammation of the pouches (follicles) in the skin where hair grows. You can have folliculitis on any part of your body that has hair. The condition is usually caused by bacteria, but it can also be caused by a fungus or a virus. It may be caused by ingrown hairs from shaving.
Symptoms include pimple-like bumps. They may be reddish and have pus in them. The bumps can be tender and may itch or burn. Sometimes the condition can lead to more serious skin infections.
A mild case usually heals on its own in about 2 weeks. Oral antibiotics or cream that you put on your skin usually work to clear up deeper, more severe infections.