Recurrent oral thrush.

Anyone have any tips on how to get rid of oral thrush? I sent a msg to my dr last night and am going to be callin after the office gets back from lunch. This is the second time I’ve had it in just a few months. In fact I’m not entirely sure I got rid of it completely the first time. The dr had prescribed diflucan for it. It helped, but I don’t think it knocked it out completely. Should I change my diet? Will Greek yogurt help? Probiotics didn’t seem to do a thing. I’m kind of freaking out over this because we don’t have the money right now to have to constantly deal with something like this. Any help is greatly appreciated.