Before I had my root canal extracted I suffered real bad sinus pain in my head and eye area. My eyes would water constantly and my gums in the root canal area would hurt. I have very bad headaches. I also suffered constantly with upset stomach plus I thought I had arthritis in my leg, arm and shoulder. I went to several doctors and they all could only tell me to take aspirin, and that I was just getting older. From the first day I had the root canal tooth removed I have had not more problems period. I feel much better. It seems that all of the bad symptoms just disappeared. I will never have another root canal. I now know I can be healthy and pain free again.