Modern medicine believes that the patient's skin is poor in cold tolerance, attacked by cold air, and the peripheral skin blood vessels contract or spasm, which leads to local blood circulation disorder, hypoxia and malnutrition, resulting in tissue damage. Traditional Chinese medicine believes that the occurrence of this disease is due to the lack of yang, cold and dampness, poor blood circulation and blood stasis.
The occurrence of chilblain is mainly related to the external temperature. When the weather is cold, our blood vessels will contract under pressure to reduce the heat emitted to the outside world and maintain body temperature. On the other hand, in the smaller parts of our blood vessels, such as hands, feet, earlobes, nose tips and so on. Once the blood vessels contract in cold, it may cause local blood circulation obstruction, venous congestion, swelling, itching, erythema, ulceration and other chilblain symptoms.
Frostbite is not only cold, but also related to one's own constitution. Some people have never suffered from frostbite, or have only one attack occasionally, while some people will find that some parts of themselves will "relapse" every year as long as they have frostbite. This is because these people's weak parts of the body have poor blood circulation, so every time the cold comes, they are naturally more vulnerable to frostbite.
Extended data 1. Pay attention to external warmth.
In cold weather, don't refuse long pants, gloves and hats because a thin layer of clothes can't keep warm. These clothes may not make us feel warm, but they can help our bodies reduce heat emissions and prevent the development of frostbite.
2, strengthen the body blood circulation
If in winter, no matter what measures you take to keep warm, frostbite keeps popping up, then you should consider whether your blood circulation is not smooth.
Strengthening our own blood circulation can warm our bodies from the inside, thus preventing frostbite. Usually, we can improve the blood circulation of the body by soaking in hot water, drinking ginger soup, rubbing prone parts, strengthening physical exercise and changing clothes.
However, it should be noted that if your hands or feet have been frostbitten, don't soak or warm them with hot water immediately, because the sudden change of heat and cold is also one of the reasons for frostbite.
3. Train your body to adapt to the cold
When the weather is not too cold, you can try to touch cold water or even take a cold bath to improve your adaptability to the cold. However, women should not try this.
Baidu encyclopedia-foot frostbite
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