The pad heats itself when opened and lasts for 16 hours. The heat warms and stimulates the meridians, removing cold and unblock the blockage that causes pain and inflammation. It can be used for inflammation and pains caused by soft tissue injury, rheumatoid arthritis, hyperosteogeny, cervical spondylosis, lumbar muscle strain, prolapse of lumbar intervertebral disc, periarthritis of shoulders, chronic prostatitis, chronic pelvic inflammation, chronic enteritis and chronic gastritis.
