Emergency Care
Sometimes the pain is so out of control and a trip to the emergency room is needed. Before taking this step, you should try to contact the doctor treating your TN so he/she can call ahead and explain to the ER doctor that you have TN.
There is a great article written by Dr. Linskey in the FPA quarterly journal from the fall of 2020: https://fpa-support.org/wp-content/uploads/2020/10/FPA-Quarterly_2020-Fall.pdf. It also includes an open letter to emergency room doctors outlining the preferred treatment. (page 9)
There is a paper you can print and carry with you to help explain your situation when you are unable to speak clearly because of the pain.