Hi Robert Henry...About 6 years ago I had an infected root canal next to an incisor tooth. This infection occurred two weeks after I had that tooth capped. So the dentist caused this infection. I thought the tooth would have to be pulled which was terrible news for me.
So I tried the following protocol: Take 1/2 teaspoon gum turpentine. Don't swallow it just keep the turps over the infected area in your mouth for at least 2 minutes or for as long as possible. Turps is quickly absorbed by the skin and gums. I did this protocol every day, once a day. In a week the pain was greatly reduced and after a month no more pain. The turps completely killed the root canal infection and I still have that tooth today, pain free. So if this protocol worked to clear out a deep root canal infection it should also work to disinfect and heal a tooth abscess.