I have seen all the posts here and I have had the same issue for just about 2 years now. My issue started with burning tongue and lips that would just go away for a few weeks only to return for several months. I have red blister like bumps all over the sides and tip of my tongue. Two very red raw spots in the middle near the tip of my tongue. At night while sleeping my tongue gets so dry it wakes me up. In the morning the problem is not as bad and I think today is the day it will go away.....Nope, as the day goes on it gets worse. Thank god for sugarless gum, that seems to be the best at making it better. I have been taking B-12 and as of last week using biotien tooth past and mouth wash. Both my Dentest and Dr have looked at it and neither seem worried about it.. I just want it to go away....