Keep in mind that I'm not a dental professional in any way and I can't say for sure our cause is the same. Also, based on what I just learned here, remember that tooth decay is an infection.
I had my molar pulled too because of an infection. I had pain in it before, but after the extraction it is a lot worse.
I put a clove oil mixture over the gums of that tooth and the surrounding teeth. I keep it there for about an hour, or until the pain goes away. It's temporary relief, but it will let you go to sleep. Again, assuming the pain is caused by an infection, like the abscess that I have. I don't see the harm in trying it though.
I dip a couple of cotton balls in a three 1/4 teaspoons olive oil and one 1/4 teaspoons clove oil mixture and do as described above.