I just had a toothache that morphed into an abcess. I was in pain for 6 days before I got it taken care of. The entire side of my face was hot and swollen from infection. Go to the dentist.
I had cephalexen(antibiotics) left over from strep throat(bad me, should have taken it all) and was taking that, but it doesn't always take care of an abscess according to what I read on the internet. Do a search on toothache home remedy and you will find a lot of different things to try.
If the infection can't find a place to come out, and bursts on the inside, you run the risk of blood poisoning. I didn't have the money to pay to have it pulled either, or have insurance, but I am so glad that I had it pulled. When I went in, they had to drain the infection before they could pull it and probably got 1/4 cup out of it. There is still dull pain, cause it is still healing, but the pressure from the infection is gone.
Take Ibuprofen, it is an anti inflammatory and is the one thing that made the pain stop. For me, 400mg lasted for 3 hours. They recommend 800mg and mix it up with another pain reliever(Goody's) every 3 hours.
The cloves made my tooth hurt!!! Try rinsing with Listerine. The warm salt water helped temporarily, as did a wash cloth heated in the hottest water I could get(and then I started heating in the microwave). Try an ice pack. I tried a little of everything and did get relief a couple of times.
So sorry for your pain and I hope you can find relief. I have been kicked in the leg(below knee) by a mad stallion and it didn't hurt anywhere near what this toothache did. I had no clue a toothache COULD hurt that bad.