Causes of Boils and How to Treat Them - Verywell Health
https://www.verywellhealth.com/facts-about-skin-boils-1298800
WebNov 12, 2023 · A boil is a red, swollen bump surrounded by red, irritated skin. Usually, one or more small whiteheads, called pustules, will form in the center. These are filled with a white or yellow pus-like fluid. Sometimes boils heal without forming a whitehead. Why Do Boils Itch? Boils often itch and hurt due to the body's inflammatory response to infection.
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