I would really research RF before moving forward. Some have had relief, and other's have had very bad results. I was unfortunately of the latter group. Hooshmand advises against it on his blog. It increased Sensitivity to the point that wind and vibrations cause me major pain, which encourages me to be a hermit... It's a gamble I will forever regret, because I didn't research it at the time.

If she can undergo Ketamine, it works well for some (and not for others). As well as a plethora of other meds and other treatments.