Forty years ago I had a case of trigeminal neuralgia. It was in Kenya where I was working in the Kenya wildlife department. I was suddenly smitten while on a work-related safari a day’s drive north of Nairobi. It was the most excruciating pain I ever experience before or since. Once back in Nairobi, I saw a doctor who correctly diagnosed the condition. She prescribed carbamazepine (sold as Tegretol). Within 3 hours all my symptoms disappeared. I continued taking tegretol for a few weeks and, while I would sometimes feel minor symptoms returning, symptoms were never again as severe as originally. After a few months (and since) I was totally symptom-free. Just my experience. I hope you can also find a cure. I know how painful it could be. When I got it, I was afraid I would die. Then I was afraid I wouldn’t.