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Ivan, my wife used to use a TENS unit for back spasms, in case you are not familiar with this, it is a device about the size of a Walkman tape player with wires that attach to the skin with little adhesive contacts, it provides a mild electrical current, that relaxes the muscles by interfering with the signals from the brain. I am sure I have oversimplified the process, but the best part, is no medication, and if it does not help, it also cannot hurt! Maybe a doctor can give you a loaner unit to try? I think TENS stands for Transcutaneous Electrical Nerve Stimulator. Hope it helps. Ken B