Stop the sugary drinks, including sugar in tea and coffee. Whenever I get toothache I lay off the sugar, haven't been to the dentist for nearly 15 years now and never had a filling

Oh and if you want relief from the pain short term, just go mad with ibuprofen + codis + cocodamol + nytol + alcohol, all legal and on an empty stomach you'll be in bed fast asleep in no time