Inverse pityriasis rosea usually causes a rash on the armpits, groin, neck, or face. The rash may clear up on its own, and medications such as antihistamines can help with itching. Inverse pityriasis ...
Medically reviewed by Susan Bard, MD Chafing, eczema, and heat rash are common causes of an inner thigh rash.An ongoing or severe inner thigh rash warrants a doctor's visit for proper ...