I Have Had A Series Of Fungus Related Problems Including,

I have had a series of fungus related problems including, toenail, jock itch and mouth, similar to thrush. I have taken a couple of doses of Lamisil and nystatin mouth rinse, powders and creams. The problem keeps re-occurring. Are there natural cures? My mouth feels dry and my tongue feels like it is burned along the edges, but looks normal. Could this be a reaction to nystatin?