Can I ask what symptoms you're seeking treatment for?

The reason I ask is, if you have spinal problems causing pain in your legs, then I'm wondering if this doctor is suggesting a chemical sympathectomy?

There's pleanty of information available on the web about this treatment, but basically it involves injections into the spine at the level that corresponds with the problems that you're having.

The drugs they inject into the spine, block the pain impulses to the brain. The aim of this procedure is to leave the patient painfree.

I don't know if this is what your doctor has in mind for you, but it does sound like a viable suggestion