Hi. I Was Recently Diagnosed With Cdiff. The Have Me

Hi. I was recently diagnosed with cdiff. The have me on antibiotics for 14 days. Changed from flagyl to vanclamycin. I had to take a Diflucan for yeast infection. Right now and for the past 2 weeks I've had a very itchy rash on my tailbone. In the crease. I'm wondering if the yeast infection is causing it???? I also fractured my tailbone 2 days ago in a few different spots? Any relation? Going back to the dr tomorrow. What can I do to stop the itch, and the raw skin. It burns horribly.