I was diagnosed w/PBC 5 months ago, 2013. In 2009 I developed a very itchy rash on each side of my collar bone. A dermatologist prescribed hydrocortisone cream & anti-itch pills, & it went away in a few days. This same exact rash, in same exact location, has occurred 4 yrs. later. The skin is red & inflamed looking with tiny, raised bumps. Can someone please describe what a PBC rash looks like? I read that some people say there is no outward appearance, only itching inside. This rash is on the surface & visible.