Hey, Welcome to NT
There's lots of info here about TN. It's no fun, for sure.
I'm so sorry things are this way for you, right now. 24/7 is miserable.
There are lots of unanswered questions here, so it's hard to make hap-hazard suggestions when it involves nerves and face, numbness and tingling. This is very serious.
Even harder to get help for when there's no textbook answer. So, be patient.
I would suggest you keep a journal of your daily activities and medications, appointments, telephone numbers, and people you talk with, foods and exercise, pain scale, pain patterns, describing in detail, to see if you can look back on it for some help in management of your condition until some professional, or miracle fixes it.
There's lot's of scans, tests, dyes, even stem cells that may help you with this problem.
I hope you find the right healthcare providers. May you find some peace, by any means you can, for now.