What Causes Armpit Redness or Rash & How to Treat It

Red armpits can also be itchy, painful, or appear as little red dots. The most common cause of red armpits is an allergic reaction to certain hygienic products or chemicals. Other irritants that cause redness in the armpit include scabies or infected hair follicles. Read below for more information on causes and treatment options.

Questions Your Doctor May Ask About Armpit Redness

  • Do you have a rash?
  • Did your symptoms start after you were exposed to nickel (commonly found in jean snaps, metal pens, paper clips, cigarettes, etc.)?
  • Did you possibly brush into poison ivy, poison oak, or poison sumac?
  • Did your symptoms start after you were exposed to glues, fragrances, preservatives, hair dyes, soaps, detergents, or other common household chemicals?

Self-diagnose with our free if you answer yes on any of these questions.

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  • Pain in the armpit can be caused by skin conditions that include infected hair follicles, ingrown hairs, or inflammation from deodorants ot lotions. Sore armpits can also be caused by enlarged lymph nodes or trauma from an injury to the shoulder or upper arm. Other causes for underarm pain can arise from breast pain or nerve damage that can affect the neck and arm. Read below for more information on causes and how to find pain under armpit relief.

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