Fever Blisters on the Arm: Causes, Symptoms & Treatment

Fever blisters, also known as cold sores, are caused by the herpes simplex virus (HSV) and typically occur on the face, especially around the mouth and nose. They can sometimes appear on other areas of the body, such as the arms, but this is less common. It is important to consult with a healthcare provider to accurately diagnose any suspicious lesions and receive appropriate treatment.