RhoGam is a vaccine like globulin shot that was developed in the late 1960s to keep a Rh negative woman from becoming sensitized to the Rh positive blood of her fetus in the unlikely event blood mixing occurs. Rhogam works very much like an immunization.
However, some new research has shown that TENS may be effective for reducing pain in people who have fibromyalgia, especially in combination with other treatments, such as exercise. Fibromyalgia is often treated with various medications to relieve pain and improve sleep.
A TENS unit, or transcutaneous electrical nerve stimulation unit, sends electric currents to the nerves in the back to help relieve back pain. The pulsation is usually at a lower voltage, though patients can choose to increase the intensity of the electric pulse if needed.