Here's the thing: If your tooth is causing you pain, then you need to have it out soon. There's no sense in postponing something like that and dragging out the misery. If your dentist doesn't want to work on you now, then perhaps it's time to find another dentist.
Toothaches are nothing to mess around with, nor are wisdom teeth that are causing problems. I'm not trying to frighten you; I just don't see any good reason to live with that kind of pain--especially when you don't have to. Besides, the blasted thing's got to come out sooner or later anyway. Why not make it sooner?