90% Success Rate for Pain Relief What is Broadway’s Bio Injection Therapy? Injection therapy is a safe, natural and inexpensive method of managing pain and promoting healing in your body. By injecting a homeopathic solution just below the skin or into the muscle, certain ailments and conditions can be treated. The injectable solution consists of all-natural compounds, including small doses of plants, extracts, vitamins and minerals. Treatments with this therapy hold a 90% success rate. When applied to specific areas of the body, injection therapy can relieve pain and trigger the immune system.