I underwent a radiofrequency procedure years ago and it made my hypersensitivity much, much worse, and it never decreased. They are not commonly offered anymore. I would discourage anyone from undergoing this procedure and really question why your doc is still performing them.

http://www.rsdrx.com/crps_and_sympathectomy.htm

"RADIOFREQUENCY SYMPATHECTOMY

The most traumatic of all invasive treatments is Radiofrequency Sympathectomy (nerve ablation and block). It is done with a heat generating Radiofrequency electrode causing a boiling hot temperature at the target area which coagulates, destroys and kills the nerve fibers and nerve cells.

Because the Radiofrequency damage causes high temperature in the adjacent areas of the target, it also destroys the adjacent normal nerves causing a much larger lesion and scar formation with spread and aggravation of pain in a permanent fashion.

In CRPS the sympathetic system is dysfunctional rather than simply being hyperactive. The longer the disease is left untreated and the more surgical scars, the more dysfunctional the sympathetic system becomes. This is the reason for practically 100% failure of treating CRPS with sympathectomy, radiofrequency, and chemical sympathectomy with phenol, alcohol, etc."