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Pulsed Radio Frequency ablation treatment?
I have an interest in this as well, and I also get mixed opinions or advice.
I often dig through medical studies to get a better idea of these things, but there does not appear to be a widespread study on PRF and thus no wide consensus on efficacy. You will find that some of the smaller studies suggest it offers short-term relief of a year or so but then repeat PRF is necessary again.
http://pubs.rsna.org/doi/full/10.1148/radiol.11110727
http://www.goldjournal.net/article/S0090-4295(02)02423-8/abstract
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2914602/
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4045265/
NIH has many articles on PRF in general
http://www.ncbi.nlm.nih.gov/pmc/?term=Pulsed+radiofrequency
Perhaps Dr Towfigh has experience with this procedure?