1. Is poor local blood circulation also a major cause of frostbite?
Many people believe that frostbite is caused by freezing and that it can be avoided by wearing thick clothes and keeping warm. Li Jianwei said that frostbite is a tissue injury caused by local cold attack on the body. In addition to cold, poor circulation, lack of exercise, sweaty hands and feet, poor nutrition, anemia, and tight shoes and socks can aggravate the condition. Therefore, it is important to keep your clothes loose and comfortable while keeping warm in winter. Overly tight leggings, leather pants and boots can trigger the development of local frostbite.
2. Is frostbite recurrent?
Frostbite is often painful because of its recurring nature, so what are the reasons why frostbite does not heal over time? Li Jianwei said that frostbite caused by cold can cause local tissue vessels to produce a substance called immune complex, which is not easily swallowed by the body’s phagocytes and often remains in the local tissue vessels, forming a chronic disease that remains for a long time, and when the cold acts on the local area again next year, it interacts with the local residual immune complex to form a local immune response and induce frostbite. Therefore, frostbite can recur in a certain area for several years, and people call it “habitual frostbite”.
According to traditional Chinese medicine, people who are prone to frostbite tend to suffer from Yang deficiency or Qi and blood weakness.
From the perspective of Chinese medicine, people who are prone to frostbite tend to be those with Yang deficiency or Qi and blood weakness, and can be divided into the following groups
①Children and adolescents: After receiving cold stimuli, children and adolescents have a much stronger subcutaneous small-vessel contraction response than middle-aged people, especially than older people.
②Young women: Women are less adaptable to cold, have low skin resistance to cold, and are particularly vulnerable to frostbite in winter.
③People who are weak, suffer from heart disease, vascular disease and poor peripheral blood circulation: The local skin of such patients has poor adaptability, tolerance and resistance to cold, and cannot withstand the stimulation of cold and is prone to frostbite.
④People who live and work in a humid environment: the working environment can obviously aggravate the impact and harm of cold on him, and more easily destroy the contraction and diastole function of local blood vessels, prompting the formation of frostbite.
⑤ Long-term standing, lack of activity, narrow clothing, poor nutrition and excessive fatigue are also prone to frostbite
4.Proactive protection against frostbite
①The most important measure to prevent frostbite is exercise. Before winter, strengthen cold exercise, such as running, rope skipping, gymnastics, ball games, boxing, sword dancing, etc. The amount of exercise is appropriate for the exercise and no obvious fatigue after the exercise.
②Adhere to the cold water hand washing, face washing, foot washing, or cold water bath, winter swimming, etc., can significantly improve the local blood circulation, improve the ability to resist cold.
③In early winter when the weather suddenly becomes cold, frostbite is most likely to occur at this time, so special attention should be paid to keeping warm, especially in areas where frostbite has occurred in previous years.
④Wear insoles that are wide and comfortable and have a strong ability to perspire to keep them dry and avoid local pressure.
⑤If you have been in the cold for too long, such as riding a bicycle, immediately after returning home, soak the parts that are heavily frozen and under local pressure with warm water, or use rubbing and massage to strengthen local friction and movement to quickly improve local blood circulation.
(6) strengthen nutrition, you can eat higher calorie food in winter, so as to enhance the body’s ability to resist cold.
5, does not advocate the use of needles to puncture the affected area to make it bleed
After the skin is scratched because of itching, frostbite may not heal for a long time, and in serious cases, secondary infection may occur. Therefore, it is recommended to visit a specialist hospital for severe frostbite. Some people have found that imipramine has both anti-inflammatory and anti-allergic effects and can be used in the treatment of frostbite.
6.Food therapy can relieve frostbite
In the early stage of frostbite, when the skin is not yet frostbitten and only painful and itchy symptoms appear, you can use white radish water to rub the affected area repeatedly until it becomes hot, which can effectively prevent further deterioration. Meanwhile, herbs commonly used to relieve frostbite include cistanches, angelica, dried ginger, pepper, fennel, cinnamon and cinnamon sticks, which can be stewed with lamb or dog meat or cooked in porridge.
7. Some primary diseases can be secondary to frostbite
Some people suffering from heart disease, vascular disease and poor peripheral blood circulation are prone to secondary frostbite and need active treatment of the primary disease.
In addition, since diseases such as systemic lupus erythematosus and cryoglobulinemia are very similar to frostbite in terms of clinical manifestations, if the affected area is still slow to heal despite correct treatment, especially if frostbite occurs repeatedly over a long period of time, it is recommended that a comprehensive examination be conducted to rule out the possibility of other diseases.