In December I developed a rash - if it is a rash, more of a red mark - shaped like a literal love heart. It is located on the inside of my elbow (inner arm at the joint) and sometimes fades. It usually turns darker (redder) when I exercise - not raised, not itchy. Just an unusual mark!! Does anyone know what this is, and should I be worried? The only symptom I had when I first got the rash was a lot of stress. Thanks for your advice