Smoked meth twice now and each time my tongue dried, it broke out in white sores and discharged a yeast like substance

Sounds like your body is trying to tell you you are allergic to meth and the garbage that is in meth. Your health will suffer and your teeth will literally rot out of your gums if you continue with this poison.

The ultra dry conditions caused by the meth are from the junk that is in the meth. It is not yeast or thrush. It is basically a chemical burn you sustained in your mouth.