If the patient has soft tissue injury, cold compress treatment should be carried out within 24 hours after the injury. After the patient has soft tissue injury due to external force or other reasons, the subcutaneous capillaries will rupture and there will be blood exudation, and there will also be a certain amount of tissue fluid exudation, which will make the patient’s skin surface appear red, swollen, bruised, swollen and other symptoms. When the above symptoms occur, cold compresses should be applied within 72 hours, which can not only reduce the sensitivity of the nerves and effectively relieve the patient’s pain, but also make the blood vessels contract and reduce the blood exudation, so as to achieve the purpose of hematoma control. After 72 hours after the injury, patients should change to hot compresses, which can promote blood circulation and accelerate the absorption of hematoma, but cold compresses should be applied within 24 hours.