General information really. Noted toothache mentioned on the shouty thread in activ convos.
My dentist advises crunching an aspirin between your teeth. It tastes utterly disgusting but you'll not mind if you're toothache is really bad and it does help (if only a little). I recall that aspirins are otherwise not really recommended for self-medication nowadays but I was in REALLY bad pain and would do anything for relief.
I also found that oil of cloves, or even biting a whole clove on the offending tooth, relieves the pain - and they really really taste disgusting.