There really is no "home cure" for a toothache. You can temporarily treat the pain with advil or tylenol. Sometimes ambesol (clove oil) will temporarily numb the pain. What you really need to do is see the dentist so he can evaluate what is wrong with your tooth.
PLEEEEASE go to the dentist. I tried healing a toothache at home and didn't go to the dentist and ended up with extreme pain. After I was in pain for a week I needed a root canal. Be safe and go to the dentist.