If a doctor told me it's either this block, which will work, or else you'll have to submit to a SCS I would have doubts about this doctor. Since when have blocks been a solution to RSD? By and large they are only temporary. If the only treatment is for this doctor to make $60,000-70,000 off of a stimulator, plug and play and he walks away, I'd find another doctor. You've been into remission before so to me I would hope that you can find it again, but a SCS maybe a permanent solution to a temporary problem. Those SCS do help many but also hurt many and can and does cause spread for several.