I have been having trouble with a tooth for over 3 years I had a root canal and it still hurt like mad even after months.I changed dentist and he gave me antibiotics which helped a bit but 6 months later the top/filling fell out (last week)and he filed the rough edges down to stop it cutting my tongue and scheduled an extraction for 15 march.I have now been in agony with it all weekend living on painkillers and clove oil and I think it is infected The tooth is definitely not dead because if I tap it I am nearly in tears.I intend to gotomorrow as an emergency but a friend has told me that an infected tooth won't numb!and now I am terrifed of the pain Any experience of this?I am desperate to have it out but am frightened of feeling it