Soak your feet with bottled hot water every night, then drink more ginger and brown sugar water, stop all cold and raw foods, and eat more warm foods such as onions, ginger, garlic, onions, potatoes, Chinese cabbage, beef and mutton, chicken, shrimp, red dates, black rice, longan and walnuts. Try to make it soft and rotten for easy absorption, and hit the wall or tree with your back every day. If you hit the wall, you'd better pad a board. The start time is short and gradually increases to about half an hour. Remember not to rush, step by step, the elderly are weak and can't exercise too much. All these will only be effective if we persist for a long time.