You definitley need a pm. Preferebly one that specializes in rsd. It doesn't matter if you have a partial settlement, you should still have the right to choose your dr. I am currently on Butrans, clondine and neurontin. Together they do pretty good. I also have vicodin for break through, but don't need it that often anymore. (Thank you Jesus)
Ask your neuroligist to refer you to a pm. Then workers comp. should not deny you or you can take them back to the labor board. But either way it is documented.