I have two cavities I need drilled on and I have been postponing it for the past two years because I am terrified of being drilled on. Last time I was in so much pain that I just let my teeth go this time because I have been so nervous about it.

I need either laughing gas or a muscle relaxer and don't know the best solution.

I've taken a muscle relaxer before when I had my IUD replaced and though it relaxed me I was still in pain. I have never taken laughing gas.

It would be $40-$50 cheaper to do a muscle relaxer, but I need someone to stay at my appointment and drive me home. Laughing gas is more expensive but once its done I am free to go about my day.

What are your experiences at the dentist and which would you recommend?