Neural therapy (neural tension technique/electroneuromedular medicine)- Proponents of neural therapy believe that (i) the nervous system influences all bodily functions, (ii) energy flows freely through the body of a healthy person, and (iii) illness and chronic pain disrupt this flow of energy.  It involves the injection of anesthetics into various places of the body to eliminate pain and cure illness.  This method is not to be confused with nerve blocks and local anesthesia used in conventional medicine.  In neural therapy, anesthetics such as lidocaine and procaine, are injected into areas of the body that may be located far from the pain source.  These injections are meant to eliminate "interference fields" and restore the body's natural energy flow.  The injections may be given into nerves, acupuncture points, glands, scars, and trigger points.  A course of treatment may involve 1 or more injections spread over several weeks.  A few practitioners use electrical current and lasers instead of injected drugs.  Research into neural therapy has been done mainly in Germany where it is widely used; however, there is insufficient evidence on the effectiveness of neural therapy for pain management or for any other health problems (American Cancer Society, 2007).