I know what I would do, without question go to Dr. Theirl, he has proven to be able to help Alan, were as the neurosurgeon sounds like he is a bit jealous that the neuro/chiropractor knows how to treat him.
I know there is a few neuro/chiroprators in my state, perhaps I should ring them up and tell them that there is no such thing. , some docs really make you laugh, reminds me of a professor of neurology that I saw when I first got PN, going by a nerve conduction test " I had no signs of peripheral neuropathy "
this is what he wrote back to my gp, the goose didn't even know how to test for small fibre neuropathy, once I got see a decent neuro he got real angry when he read this other neuro's report, and said who is the idiot that wrote this, I told him and he said " oh him " and just through the report accross his desk as you would with crap.
I have found that some doc's are really terrific and others think they are, say no more