I experienced nerve pain in my face that was excruciatingly painful and since my mom has had trigeminal neuralgia I knew I had all of the symptoms. I decided not to take medication and to explore natural options and lots of prayer. One day I started to get a cold sore on my lip as I have gotten them all of my life so I took a very high dose of the amino acid l-lysine. My pain completely went away after a few days. My doctor said that it's possible that the herpes simplex virus could have attacked my nerves. Now I take 1 500mg capsule of l-lysine every day and praise the Lord I am still pain free after several months. I hope and pray that this will help others because I know how terrible it is. You can get L-lysine from any vitamin store. They cost around $5.00 for 250 capsules (don't get the pills cause they're hard to swallow). May God bless you!