1, improve local blood circulation. After absorbing infrared rays, the human body converts them into heat, causing vasodilation, accelerating blood flow, improving local blood circulation, improving the nutritional status of local tissues, and increasing the vitality and regeneration ability of tissue cells, so it has obvious effects on the regression of swelling and inflammation.
2, anti-inflammatory and analgesic. Blood circulation is improved, inflammatory products are taken away, and the phagocytic ability of phagocytes is enhanced. Heat can also reduce the excitability of nerve endings and improve the pain valve, so it can diminish inflammation and relieve pain.