It's weird. I've never had ANY luck with these darn things. Seems like others have some, but not me. I must be made of steel or something.

But it just doesn't relieve the pain.
Just keep in mind that these are temporary. They're not going to "take away" the pain. All these injections are "bandaid" procedures and aren't permanent.
As far as nerve ablations, the nerves grow back. They DON'T KILL the nerves. The nerves grow back at the AVERAGE rate of one inch per month, some quicker some slower. So it's not killing them, unfortunately.
Best of luck. Hugs, Lee