I'm a bit concerned about ringworm because I handled some kittens that have just gotten over it. I washed my hands well, but sometimes these things can be real tenacious!
I've been meaning to get her pooping problem checked out too!
As for acne, they do have ceramic bowls, but I have to suspend a small plastic bowl into the larger ceramic bowls to keep ants out. I might try and find a tray to create ceramic "islands" so they can eat straight out of the ceramic bowls.