Clinical causes of swelling and pain are generally the following: First, patients fall accidentally during strenuous exercise, which can cause soft tissue injury of the limb, accompanied by local swelling and pain. Patients can reduce tissue exudation through local ice, oral blood circulation and blood stasis pills and other drugs, faster relief of soft tissue injury caused by swelling, pain symptoms. Second, patients with varicose veins of the lower limbs, because the superficial blood vessels tortuous expansion, causing lower limbs limbs obvious swelling. The degree of swelling will increase after the patient’s activity and cause local pain symptoms. The main trunk of the varicose veins can be removed through surgery and the branches can be ligated to completely solve the symptoms of swelling and pain in the lower limbs. Third, local skin and soft tissue infections, can also cause local swelling, pain, can be applied externally vitality iodine gauze, Jinhuangsan ointment, to promote the absorption of inflammation, reduce the symptoms of swelling and pain.