as far as chelation, all i can tell you to do is chelate fo about 4 months. use the supplements on my website, take hot baths, go to hot springs (they have sulphur), take mineral baths (epsom salt, for example, and it has sulphur), eat onions, garlic, eggs (foods that contain sulphur).
it is not the kind of infection that causes fevers. it is an anaerobic infection and those don't cause fevers and stuff like aerobic bacteria do.
don't start chelating until you find out if you have a cavitation where that root canal was. otherwise, you can push toxins through your body and get sick.
first of all, what was the method used when the root canal was pulled? it should have been cleaned with a burr, then a curette, then flushed with an aneseptic, then stitched. no gauze or anything should have been put in and no medications. let me know if this method was used, or if you don't know, and i can tell you where to go from there.