Oh, dear, you have no replies. :( Um, I'm type two... I took metformin for about 3 years and avandia for less than 1. I'm now on insulin because my body hates me. :) Um, the closest I've ever come to what you described is a sore I get in the right corner of my mouth when my sugar goes high for an extended period of time. My research leads me to believe that its a little yeast infection thing.

If your sugar is well controlled, though, that shouldn't be a problem for you... So I don't really know...