Gabapentin
"All branches of the Trigeminal firing with chewing, talking, brushing teeth, etc.  Neurontin works wonders. I'm taking 400 mg every 3 to 4 hrs...with relief after 3 doses. HAVE TO TAKE IT REGULARLY. Have taken even higher dose when I had very painful bouts (for 10 yrs) and also had glossopharngeal (9th nerve) neuralgia. Breathe and exercise to keep centered and balanced. No bad side effects like many other medicines I've tried. "