From what I was reading the other day (while trying to figure out what my tongue
was doing) mouth
peeling can be a symptom of mouth
cancer. It's possible too that you have thrush (yeast infection in mouth), which can cause your skin to peel. I'd just wait a few days to see if it gets better. If not, consult someone who can take a look in your mouth. For the time being, if you do suspect it is a burn, drink lots of water.