If you notice a rash or blisters along with right-side chest pain, call your doctor promptly, Bauman advises. There are anti-viral treatments for shingles, but they need to be started early.

Heat Rash Causes Elliott says that heat rash is caused by blockage or inflammation in the eccrine sweat ducts, which are all over your body, These ducts help with sweat production, which cools you ...

A dry, circular, and slightly raised plaque measuring up to 5 centimeters in diameter may appear on your chest, thigh, arm, or neck. This is called a herald patch. A rash of small, discolored ...

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.

There are many causes of right-side pain under the armpit, including muscle strain, infections, or skin conditions. In some cases, it may indicate a more severe condition, such as cancer.