What Causes Armpit Pain?

Skin Conditions And Irritation

Individuals can also deal with armpit pain if the skin around the area becomes irritated, or if they have a skin condition. Tight clothes or garments made from rough materials can cause skin irritation, as can shaving, particularly without shaving cream. Other things that can irritate the skin include laundry detergents, deodorants, lotions, and soaps. Additionally, noninfectious rashes, such as acanthosis nigricans, can occur in the armpit and cause pain. This rash is commonly found in patients with diabetes and psoriasis, as well as individuals who are obese. Another skin condition that can cause armpit pain is hidradenitis suppurativa, which is a chronic condition similar to severe acne that involves sweat glands in the groin and armpit. Treatment for this condition involves antibiotics, acne medications, and immunomodulators, and in severe cases, treatment will require surgery.