I have an exposed nerve in a tooth and also lots of other teeth that are in desperate need of dental care but I currently have no insurance and are trying to save up the money for a visit to a dentist but in the mean time I've got to find something to help my pain. My pain is so bad that it interferes with my everyday life and I have lots of trouble eating. I'm just constantly in pain. But my grandmother has a lidocaine oral solution she uses for her mouth because of lots of mouth ulcers and I was wondering if I could use this for my mouth pain as well just as a temporary help for my pain until i can get adequate dental care. I've researched the lidocaine solution and have found that it is used as an oral topical anesthetic but I'm just unsure of it on an exposed nerve. So if anyone could be of any help it would so greatly appreciated.