Hidradenitis suppurativa (HS) is staged as mild, moderate, or severe using the Hurley system. It develops when hairs and bacteria get trapped in follicles, triggering inflammation. Hurley stage 1 ...

Boils and cysts both look like bumps on your skin. The main difference between a cyst and a boil is that a boil is a bacterial or fungal infection, and is more likely to be painful. You should not ...

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 ...

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