New findings may change the way neuropathic pain is treated. For example, we used to think that pain signals were relayed from the body through the nerve to the brain. Treatments like RF destroy the nerve and therefore stop the painful signals from getting through.
But this may not be the case at all. It appears that the complex nervous system increases its own circuitry to make up for the loss of the one nerve. The end-result may be more pain than the patient started with.
Some surgeons suggest a second RF treatment is worth the effort. Six months of pain relief is better than none. Some patients do get the desired effects making it worth the effort. See your doctor and find out what are the best options for you at this time.