I apologize. TN = Trigeminal Neuraligia = pain in side of face...nerve pain.
In my case, I'd had a large cyst in my right maxiallary sinus that required a procedure in which they cut through many nerves in my face. I actually had this particular procedure twice...four in all. The last probably not necessary as my pain was stemming from either the damage from the original cyst or the first surgery.
I dealt with it for 16 yrs. with no dx and ER visits for pain. I lived in fear of my pain and even thought I was crazy at times.
My life has been so much better since the dx and management.
Thanks for caring to ask.
KD