Final answer:
Folliculitis is an infection of the hair follicles caused by factors such as bacteria, shaving, or clothing irritation; it presents as itchy, red, or pus-filled bumps on the skin.
Step-by-step explanation:
The infection in the hair follicles that can be caused by bacteria, shaving, or clothing irritation is known as folliculitis. Folliculitis generally presents as itchy, red bumps or pus-filled pimples. Factors such as sweat, skin injuries, ingrown hairs, tight clothing, and shaving can contribute to the development of folliculitis.
While it is often self-limiting, persistent or recurring infections may require medical treatment, such as topical antibiotics. Folliculitis is typically identified by skin inspection and treatment can be initiated without culturing the causative agent.