Dalek,
I've had blocks out the kazoo and my opinion is don't waste your money. After the lidocaine wore off from the injections I couldn't tell I'd had them. And it was a looooottttt of money. I haven't had the de-enervation yet. He wanted to do one on my sacroilliac joint, but the sacro. injections seemed to do no good so he wasn't sure the denerv would do any good. There are days tho..just like you...where I'd like every nerve in my body denerved just for the peace that would come from it. The next step the pain clinic wants to do is a spinal cord stimulator. No sir not for me at least until I see what Mayo has to say.
Billye