Doctors caution: Do not use these two methods to relieve frostbite

At present, the icy winter scenery of Harbin is breathtaking, attracting a large number of citizens to go out of their homes, and tourists are also flocking to it. In severe cold weather, being outdoors for a long time also causes some people who do not pay attention to keep warm unexpectedly frostbitten. It is understood that in recent days, the number of frostbite patients in the burn department of the Fifth Hospital of Harbin Has increased significantly, most of whom are young children. To this end, doctors remind you to pay attention to keeping warm when you are outdoors for a long time in winter to avoid accidental frostbite.

Recently, a mother brought her child to the burn department of the Fifth Hospital of Harbin City for treatment, and the boy's two ears were severely red and swollen and blistered, becoming a "big ear tutu". After receiving the doctor Zhu Yinglai's inquiry, he learned that the boy did not wear a hat when he skied the circle with the children, because he played too hard, so he did not feel cold, and when he returned home, he found that his ears were frostbitten. After a physical examination, the doctor diagnosed the boy's ear with second-degree frostbite and debridement and bandaged him. Zhu Yinglai said that in recent times, the frostbitten parts of patients who came to the clinic due to frostbite were basically ears, and some patients had frostbite on their fingers and toes.

Many people will have such a question, why is the ear so fragile?

Zhu Yinglai introduced that frostbite is mainly when the body is stimulated by low temperature and humidity for a long time, which will cause spasms in the blood vessels on the surface of the body, so that blood flow is reduced, resulting in tissue ischemia and hypoxia, and cells are damaged, especially in the parts with poor blood circulation at the distal end of the limb. Such as fingers, toes, ears and other parts.

The reason why the ear is most prone to frostbite is closely related to the structure of the ear. Because the entire pinna except for the earlobe has adipose tissue to keep warm, the rest of the part is only a very thin skin wrapped in cartilage, the blood vessels inside are very fine, and the thermal insulation ability is extremely poor. Especially in winter, due to the stimulation of low temperature in the ear, the blood supply of the blood vessels in the ear will be less than other parts, the terminal blood circulation is impaired, and the qi and blood are not running smoothly, so it is easy to frostbite.

So, what to do after frostbite? Zhu Yinglai said that after frostbite, do not rub the frostbite part with snow, which will not alleviate the frostbite part, but will aggravate the tissue damage. At the same time, do not use a high temperature heat source to bake, because the local blood vessels of the frostbitten skin are constricted, and if they are directly close to the heating equipment, the blood vessels will expand rapidly, aggravating the damage, and may even make the patient suffer the double pain of frostbite and burns. Slapping the affected area hard will only make the local swelling worse.

The correct way is to go to a warm environment as soon as you find frostbite, take off your wet and tight clothes, shoes and hats, soak the affected area with warm water from 38 ° C to 42 ° C, or use a towel and hot water bottle of the same temperature for hot compresses. This allows the temperature of the body to slowly rise and allow the patient to warm up in time. If blisters appear, remember not to treat them yourself to avoid infection.

【Source: Heilongjiang Daily】

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