Just backed out of an extraction of a tooth from the bottom left hand
side of my mouth (near the middle)

The reason i backed out was i was so scared, the dentist injected the
drugs, waited for every thing to go numb then as he was pushing on the
tooth i started to panic and asked for a rest, on the second attempt i
backed out nearly immediately.

I have an abscess under the tooth which created pain every time i put
any pressure on the tooth, so i have been eating on the other side of my
mouth

I also take sodium phenytoin, and need to eat regularly every 6 hours to
keep my blood sugar level.

The dentist is recommending I consider IV sedaion.

Is this possible with my tablets and also the fact that I need to eat
regularly

How can I clear the abscess under the tooth and, if I manage to clear
the abscess will the pain be less if I try the extraction again.

Thanks