The first stellate ganglion block for me was just wonderful. It felt like the RSD just went away entirely. Unfortunately it lasted less than two hours. Each after that was worse and the 4th and final one was a minor disaster. They hit the motor nerve and paralysed my whole arm after never having warned me that was a possibility. I couldn't get ahold of the doctor's office to find out if it would be permanent or not. It was probably the stress that caused a minor flare. There was no movenment for nearly five hours.