The Doctor does it under a scope. The nerve blocks are done to find the exact nerve that is causing the pain. He injects pain medicine into the area to get the right nerve. If it stops the pain he knows exactly which nerve he will destroy. The pain free can last 2 years. And if it grows back and causes pain he will then repeat the ablation ( Burn the Nerve) I just had the 2nd one done 2 day;s ago. Doing good until the ablation procedure.

But before I had the procedures, I was taking Diclofenac 75 mgs 2 times a day that stuff really worked. Better than opioids. And also Pregabalin 75 mgs 2 times a day.Good .for fibromyalgia pain.

I think your reffering to trigger point injections. I had those also. No those didn't work for me. This is nerve blocks, those work but are temporary. Blocks are mainly a test to see if the DR hits the right nerve. Which will give me temporary pain relief. meaning it was a positive test. If it was negative, he hit the wrong nerve. So mine was positive I am a candidate for the nerve ablation procedure to basically insert a needle into to the nerve and burn it,