Programs that produce regional anesthesia, eliminate or reduce pain or treat other health problems by passing long needles through the skin to specific points. The free ends of the needles are twirled or in some cases used to conduct a weak electrical current to increase stimulation at the desired point. In some cases moxibustion is used in combination with traditional acupuncture to enhance the treatment. Moxibustion involves the burning of dried herbs (mugwort) at or near specific acupuncture points or whole areas of the body. Benefits come both from the heat of the smoldering leaves and from the nature of the herb itself.