I am still fairly new to RSD compared to some others, so they are still doing the lsb (lower sympathic nerve blocks) and trial scs, which have all failed, until recently I went thru 3 lsb a week apart and the heat from them has lasted longer then previous 3 weeks and I could put a real shoe on. (couldn't walk after a week with them, but I could put them on.) So don't give up, I am happy to hear the 2nd went better, I hope the 3rd will be even better. How far apart are they?