The Trigeminal nerve is located in the face and has been found to misfire in some patients causing a sharp pain or burning sporadic pain. There is no cure; however, cannabis can help with controlling the perception of pain received by nerves. For nighttime pain and sleep I would recommend a CBD:THC ratio of 1:1 that you can find in tincture, vape, or spray forms. In addition there are also high CBD creams that you can apply to the area that will work for around 6 hours. However, the best option would be to use a tincture with a CBD:THC ratio of >20:1. This concentration passes the blood brain barrier of the brain and used once to twice daily on a regular basis will help with your long term nerve pain and bodies perception of pain.