Q In your Dental Handbook, you mention that root canal work is dangerous, but don't spell out the dangers. Could you elaborate them for us?-MN, Brighton.
Over-the-counter products containing lidocaine or benzocaine, such as Anbesol, Orajel, and Campho-Phenique, can be used topically to provide temporary relief for toothache. Over-the-counter pain relievers such as Tylenol are also helpful.