If the site of the ingrown hair acquires an infection with Staphylococcus aureus, it can cause itchy bumps, pain, flushed skin, and pus. Staph infections come from a bacterium called Staphylococcus ...
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 ...