DD has had thrush for a couple weeks now. We did one round of Nystatin and are halfway through a second. It doesn't seem to be clearing it up at all? And 2 days ago she was diagnosed with Croup. (My poor sick baby!!!) She is absolutely miserable. Should I just finish this round of Nystatin up and if it doesn't go away then ask for Diflucan? Could the croup be keeping her from fighting off the Thrush? Thanks all!