What Causes a Burning Pain in the Armpit?

By Staff WriterLast Updated Apr 2, 2020 12:35:07 AM ET
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While many conditions may cause irritation in the armpits, WebMD notes that intertrigo usually causes a burning sensation along with redness and itching. When a person has intertrigo, the moist, warm skin becomes irritated and often mildly infected. A rash also typically appears between the folds of the skin.

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