After working out, lower limb pain is usually caused. To relieve leg pain, you can do appropriate light aerobic exercise, which can promote the dissipation of lactic acid accumulated in the thighs and increase the speed of blood circulation, so that the repair speed of thigh muscle cells increases. At the same time, you can do microwave physiotherapy on the affected area, take some oral medication to activate blood circulation and remove blood stasis, and take oral vitamin C to counteract the cell damage caused by oxygen free radicals generated by exercise. If the leg pain is particularly severe, you need to go to the hospital for a kidney function test to see if there is rhabdomyolysis syndrome.