I think that the potential proble with this sort of approach is that if it does relieve the pain (and that doesn't seem to be happening), it may be covering up a problem that may eventually result in impaired mobility. When the spinal nerve can take no more, big problems. I know what I'm talking about, I went years with relatively minor neuropathic pain then suddenly pain increased, I started to have bowel control problems, and mobility worsened dramatically. At that stage I had a spinal decompression operation, which was successful only insofar as it restored bowel control, still left with the pain and impaired mobility.

I'm not saying your case will follow same pattern, but do think long term and take advice from the medics.