Boils and carbuncles are skin infections caused by a bacteria called staphylococcus aureus (commonly referred to as staph). They present as painful pus-filled pockets, which form under the skin and ...

Folliculitis is a common skin condition that occurs when hair follicles become inflamed due to infection, irritation, or blockage. The most frequent cause is a bacterial infection, though fungi and ...

Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...