Yes. It is very successful and very wildly used for this type of conditions:.
Yes it does. I was able successfully to treat many patients witht hese condition after failing other treatmnt.
Usually. Yes, it is beneficial for a number of causes of back pain as well as sciatica. In acupuncture we often treat the source of the pain rather than the location of the pain. So by treating the back problem - it usually causes the radiation down the leg to resolve.