Thank you all for your replies i have now spoken to my dentist and we have agreeded that for anymore additional work needed to my teeth he will refer me to a dental surgeon who will be able to give far better medication for numbing aswell as sedation so i should be able to have treatment without pain fingers crossed for the future

I have a dentist who really works with me. I have nerves on the left side. Everytime she has had to do work I have had to have extra Novocain an addition meds. I made the mistake of doing to cavities at once. To long in the chair. Last week needed one cavity done. Dentist uses extra meds, I use a stress ball, sometimes they put oil on my temples. She goes slow and if I raise my hand she knows extra meds are needed.

I as well

I'm not sure what you are asking. Are you saying that the novacaine is not numbing your mouth at the dentist? I'm not sure what the condition is but I quit getting novacaine because I always had a bad reaction to it and found out I was allergic to caine mixes when I was in my 20s. Maybe Google "novacaine doesn't work for me" and see what comes up for it. I hope you figure it out.