Valium
"I have very serious flare ups of TMJD from time to time. I was originally diagnosed years ago when it was chronic. These days when I wake up with a really bad flare up I can't even close my jaw the muscles are so inflamed. I cannot get my teeth to meet up on that side it's so bad. A small amount of Valium (2.5mg) combined with 20 min of jaw relaxation exercises and positioning exercises help with the pain.... like really help a lot. I still won't be able to close my jaw for a day or two but the pain reduces significantly. A word of warning, use Valium only when absolutely needed and I've found that less is more. Taking it daily or in higher doses and you will lose its value due to tolerance. It's a tool in the toolbox not a magic fix."