...if a child in one of your LO's activities was covered in a rash?

B had roseola this week. I took him to the pediatrician on Weds and she assured me that he is no longer contagious. I specifically asked if it would be ok to take him to his My Gym class today and she said it was fine.

The problem is that the rash hasn't cleared up yet. It's faded, and not as angry looking, but it's still noticeable.

Should I leave him home? I really want to take him because he's been cooped upon the house all week. I'm worried the rash will freak out the other moms though. What would you do?