That's interesting...I don't know what to say. If you've tried everything else...maybe it is just an infection in the mouth itself. You'll have to let me know if you see a difference with using the meds. she prescribed.
Have you had all of your cavities checked?...I know sometimes if they are cracked..or if you've had a root canal you can have a white tongue.
Thanks for sharing. I'm actually feeling better eating more grains...so I'm going to lay low on the meat protein and nuts for the time being.