What condition causes the nail margin to become painful, red, warm, and swollen with pus?

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Paronychia is a condition that results in the inflammation of the skin at the base of a nail. This inflammation can cause pain, redness, warmth, and swelling. Pus may also develop, and the nail can lift away from the nail bed. Furuncle and carbuncle are both infections of the hair follicles, usually caused by bacteria. Erysipelas is a skin infection that typically presents with redness, warmth, and swelling but does not involve the nails.

What Condition Causes the Nail Margin to Become Painful, Red