You need to pump in the vitamin c and olive leaf extract, can you pull the lump and get your fingers under it or does it feel like it is attached to the bone. Can you feel it inside your mouth on the bottom of your gum.? Sorry lots of questions, peroxide is good for killing bacteria in mouth. Where you given a course of Antibiotics when the root canal was done? Need a good immune booster to help your body fight what's going on. Sounds like you have an underlying ailment that could be the catalyst for your health problems, have you ever looked into Lymes disease???