★★★★★
When your body is fighting the infection it cannot reach inside the root canal. Sorry to tell you, but your dentist will not tell you are they may not know. The dentists are not train to learn about this. You have a dead tooth, now think about this. If you have something dead in your body, it will cause you to get sick. It will spread bacteria all over your body, well that is what a root canal will do to you. Have the tooth removed, do not have a root canal!!
If you are sick this could be the problem. Love you all. Pray about this and God bless you'll.