Clove Oil is awesome for killing the pain too.
However, it is kinda harsh, and you have to remember that a little goes a long way.
Last Thursday, one of my friends snapped 2 molars (or maybe a premolar & molar idk) at work when she was removing the cap from a sharpie. She needed a ride back from the ER. I picked her up and handed her that little Red Cross eugenol toothache kits I had. Told her to place the little soaked cottonball where the snapped tooth was. I then said "you will hate me for about 45 seconds..just take it out when I tell you to and I dunno..smoke a cigarette to keep your hands busy.
Holy fuck. Boy did she hate me. "What the fuck? You're making it worse, you cunt!..............woah. that really does kill the pain...shit. Thanks."
I'm a caring cunt.