When searching the web for information, pay special attention to the source of the information. Many self help blogs and websites have some information that can be misleading. It is good to stick to those sites associated with a University.
A valuable Canadian site is from the University of Manitoba and supervised by Dr. Anthony Kaufmann.
Dr. Kaufmann’s website: http://www.umanitoba.ca/cranial_nerves/trigeminal_neuralgia/index.htm
Your complete guide: http://www.umanitoba.ca/cranial_nerves/trigeminal_neuralgia/manuscript/index.html
Another good source is the Facial Pain Association in the USA.