I also had the radio frequency procedure done and it was the worse procedure I have ever participated in! The procedure requires the patient to be awake the whole time and it was so painful. After the procedure my crps pain increased 10 fold in the affected limbs (my legs), and on top of that my back hurt really bad for months after the treatment from the procedure. This treatment increased my pain with CRPS and caused the disease to spread. Also, if the treatment is successful, in 6 months the nerve regenerates and usually with a vengeance. I do not recommend this treatment, it caused me to be in more pain, and caused the CRPS to spread.