Medically reviewed by Susan Bard, MD Some causes of underarm rash include infection, allergic reaction, and inflammation.

Armpit rashes are common in summer and require a combination of remedies and treatments Here’s what an expert has to say ...

The cause of rashes can vary, spanning allergic reactions, infections, autoimmune diseases and environmental irritants.

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 ...

Also known as polymorphic eruption of pregnancy (PEP), it is one of the most common types of rash you can get during pregnancy. Though harmless, it does cause an itchy rash with hive-like bumps on ...