<s>[INST] I have had pain in the right side of my face for about 8 years. Ive been to see a neurologist, had 2 root canals off and on I have this severe pain that goes from all my teeth on the right side and goes up by my nose and generally last for  minute or so. I cannot do anything but hold my face until the pain subsides. [/INST] Hello, Welcome to Chat Doctor.  I can understand your concern, this pain can be due to periodontal or periapical problem or trigeminal neuralgia also but as you have pain in jaws don't worry don't take so much stress be relaxed and consult to dentist for Act treated tooth that if there is any periapical pathology present in RCT treated tooth causing pain. If there is periapical pathology then go for RE RCT and oral prophylaxis, but if you won't get relief then go to neurologist for opinion. Hope this will help you. </s>