Before doing aerobics, I didn't do enough warm-up to stretch my muscles and meridians. Because of the small amount of exercise before, my ankle muscles were slightly strained or my hamstrings were dislocated. But don't worry, this is a common disease in sports. Just keep it for a few days, don't do too much exercise, and take good care of it. Soak your feet with hot water every day, then rub safflower oil gently, and the inflammation will go down!