"Doctor,

I'm a real baby about pain, especially in the head area. You can never escape it. At least when you have a pain in your arm you can find a proper position to rest it in where you can possibly minimize the agony. But the head and mouth are different, I know from previous work; I was literally in tears and simply could not sleep.

I'd feel terrible if I had to call your service to disturb you tonight if I find myself climbing the walls. How about giving me something to fall back on just in case. I'll only fill it if the Advils don't seem to be doing the trick."

Dentist comes back with "Well I can only give you a few, please don't fill it unless you absolutely must. I'm afraid of the DEA" (literal quote!).

And he is a kindly dentist too, what a shame he has to fear for his career like that!
-------------------------------

I'm not proud. Worked for me every time (now I have no teeth, when they took them out, they gave me like 10 Vicodin). Ended up coming back for more and more.

Please try it next time rather than suffer.