Really could not believe the pain worse than childbirth! I have been using the nurofen/codeine pill but today despite two this morning and two in the afternoon they did nothing. I have had to wait five days while I took 500mg x 4 per day of amoxicillin. Please tell me root canal will stop the pain. I then will have a crown a little later on.As a dentist, you have all my sympathy. Good luck with the root canal. A combination of ibuprofen and paracetamol is the best painkiller for toothache