
My ortho told me this will happen for a bit while my bite is out of alignment. I know I'm preaching to the choir.

It's amazing to me, though, how quickly the mouth heals! I have been using a rinse by G.U.M.'s Oragel brand specifically for mouth sores. Its main ingredient is peroxide. I also got some Rincinol through drugstore.com. Neither are instant miracle workers but they do help.