chronic/constant tooth infections

[elliefant]

I broke a tooth bottom back molar)way back in sept Im finally getting it removed next week, counting down the days lol, but the temp filling the dentist puts in keeps coming out. The nerves are exposed and moving my mouth is excruciating so eating and talking is a mission! Plus I've had constant infections in other teeth my gums and even the bone which my dentist prescribes antibiotics. I've had enough now I'm so miserable can any one recommend painkillers/gels etc that actually work. Also I'm seriously considering giving up eating any decent replacement meals someone could recommend! Ive been living off mash potato and soup!! I cannot stand milk so shakes etc are out of the question.