Two months ago I burned my tongue on hot soup. Also the same week prior to the soup I had teeth cleaning at dentist. The tip of my tongue took 2months to stop burning. Now I get small blisters that seem to come and go on the tip of my tongue. I am getting B-12 shots, rinse with milk and milk of magnesia, take Elavil(heard it was good for tongue burning), take antacid pills daily. Using Betadine toothpaste, Why doesn't it go away for good. I'm doing something that keeps bringing back, but WHAT?