So, meth is a horrific and life ruining substance, yes, but of course, I tried it.i have this white stain, if you will, on my tongue and it hurts as well. I ve been reading that it could be a burn from the chemicals but wouldn t that turn your tongue red, blustering, and incredibly painful? It s painful, but not horrendously, and I m just freakjng out. This was 5 days ago that I used.