I have bad toothache pain, but I can't really see a dentist until a few weeks, need help?

I had a tooth fracture that was fine until recently when I was eating some fudge and it started to hurt extremely bad. Next thing you know, it's constantly hurting so I told my parents who said that I can't see the dentist until 2-3 weeks. It is a pretty big fracture and hurts constantly, it's not too overwhelming and I tough it out a lot, but there are just sometimes it gets unbearable. Maximum strength anbesol can't even numb it down during these spouts of extreme pain. Any ideas? Also will I need a root c?