18 months and yeast infection?

Elizabeth • Mommy of one beautiful girl, and twin boys (:
Pretty sure my daughter has a yeast infection. She has a doctors appointment on Thursday, which was scheduled before this developed. But what at home things can I do to give her relief? I will be letting her run around without her diaper or a bit. Will be cleaning her with wash cloths instead of wipes. Will change her every hour. Do I use diaper rash cream on her? Or do I avoid it? Thanks for any help. I have no idea what to do. This child has never even been sick, so Im at a loss of what to do.