I often do foot massage. Whether in acute or chronic stage, swelling and pain are often the main symptoms. After injury, due to blood separation from meridians, blocked meridians, blocked gas and blood flow, local swelling occurs and pain occurs. Chinese massage can promote the circulation of local blood and lymph, accelerate the absorption of local congestion, improve the metabolism of local tissues, straighten out the tendons and collaterals, and improve the pain threshold of local tissues, make Qi and blood unblocked, thus playing the role of relaxing tendons and activating collaterals, detumescence and analgesia.