Cold compresses are usually applied within 72 hours of trauma, every 3~4 hours, and each cold compress lasts about 20~30 minutes.
Cold compress is a commonly used physical therapy method, which has the effects of hemostasis, analgesia, anti-inflammation and cooling. Within 72 hours of trauma, cold compresses can be applied to the affected area under the guidance of a doctor, with each cold compress lasting about 20~30 minutes, and cold compresses every 3~4 hours. When applying cold compresses, it is necessary to pay attention to observing the color change of the local skin and the feeling of whether there is any abnormal situation.
Cold compresses can use ice water or ice cubes placed in ice bags, ice caps, can reduce the local temperature when applied to the affected area, promote capillary contraction, less local bleeding. Cold compresses can also reduce local nerve sensitivity and slow down nerve conduction, which in turn can relieve pain symptoms. It can also help control the spread of inflammation by inhibiting cellular activity, reducing bacterial activity and cellular metabolic rate.
Cold compresses need to be carried out regularly under the guidance of a doctor, usually for 20-30 minutes each time, and for 3-4 hours each day, and any discomfort that occurs during the process of applying cold compresses should be reported to the doctor in a timely manner for consultation and treatment.