Intertrigo
Intertrigo is swelling that appears due to skin-to-skin frictions around the moist and warm areas of the body, such as between the skin folds on the abdomen, the groin, between toes, under the breasts, or under the arms. Intertrigo might make the affected skin painful or sensitive and some severe cases might cause bleeding, cracked skin, or oozing sores. Intertrigo rash usually clears up if you keep the affected skin dry and clean.