Clinically based on the patient’s specific condition is different, the cold compress treatment time is also different: First, if the patient laparoscopic inguinal hernia repair surgery, the incision of the abdominal wall after surgery needs to be given ice packs continued cold compresses for 24 hours, which can reduce the accumulation of fluid at the incision, accumulation of blood, to avoid fat liquefaction or infection of the incision. Second, if the patient inadvertently sprained ankle during strenuous activities, at this time you can through the local cold compresses for 48 hours, can effectively promote the local capillary contraction, to avoid local swelling progressive aggravation, reduce the pain symptoms. Third, if the patient is accompanied by chills, high fever, elevated body temperature, the emergence of systemic symptoms of poisoning, at this time you can through the local physical cooling, using cold compresses for 48-72 hours. Once the infection in the patient’s body is completely controlled, cold compress treatment may not be needed.