Hello,
It a great thing you are doing to spend time to speak to people dealing with chronic pain.
Trigeminal neuralgia is a severe chronic condition. It can be treated but not completely cured, Medical diagnosis are required. I would suggest you to motivate them to be mentally and emotionally strong which will help them to cope up with such kind of pain. You can suggest them on nutritional food that can help to minimize their pain. I hope this would help them.
Regards,
Tim