How chilblains are formed, how chilblains are formed, and what are the manifestations of chilblains

An abnormal reaction caused by the body being exposed to cold and then rewarming. The increase in skin temperature causes the small blood vessels under the skin to dilate faster than the large blood vessels around them, which can cause blood to leak into nearby tissues, triggering chilblains.

It may also be due to long-term repeated exposure to cold and humid environments, ** vasoconstriction leads to ** tissue ischemia and hypoxia, and the disease occurs due to vascular paralysis and dilation for a long time, venous congestion, and poor local blood circulation.

1. Chilblains are the body's abnormal response to cold. The cold will cause the blood vessels of ** to constrict, and local ** will appear ischemia and hypoxia, and metabolism will be abnormal. Over time, the blood vessels will show symptoms of paralysis and dilation, congestion, and plasma exudation, which will cause local tissue edema, blister formation, tissue necrosis, ulcer formation and other symptoms.

Humidity and wind speed can accelerate the heat dissipation function of the body surface, so the incidence of chilblains is higher in humid and windy areas in winter than in dry areas.

In addition, autonomic disorders, poor blood supply to the extremities, tight shoes and socks, excessive sweating of the hands and feet, lack of exercise, malnutrition, anemia and some chronic diseases are also often the main causes of this disease. Therefore, in daily life, we must pay attention to all aspects of adjustment work.

21. It mostly occurs on the back of the hand, the back of the foot, the fingers, the toes, the tip of the nose, the cheeks and the ears and other peripheral parts.

2. Frostbite is a purple-red lump or induration of the size of a localized broad bean to a fingernail, the boundary is not clear, the edge is bright red, ** bruised, cold to the touch, fading under pressure, and the recovery is slow after pressure, and there may be blisters in severe cases, which form ulcers after ulceration and do not heal for a long time.

3. There is no discomfort in the early stage, or there is a local numbness, and there is itching, swelling or burning sensation in the future, especially after warming, and pain can be felt when there are rotten ulcers.

4. It often begins to develop in early winter, and the climate warms up and can heal itself, and it is often repeated in the second winter.

5. It is more common in children, women or people with poor blood circulation.

31. After washing with warm water every day, apply chilblain ointment or pepper tincture externally, 2 3 times a day. When there is ulcer, apply 5% boric acid, 10% ichthytin ointment and other symptomatic **.

2. Niacinamide tablets can be taken orally, 3 times a day.

41. Quit smoking and carry out cold-resistant exercises in daily life, such as washing your face with cold water, washing your feet with cold water, or winter swimming.

2. When working in a cold environment, it is advisable to keep the limbs warm and dry.

3. Hands, feet, ears, nose and other exposed parts should be protected, shoes and socks should not be too tight, and replaced in time after sweating or wet.

4. The working time should not be too long in the cold environment, avoid long-term immobility of the limbs, and appropriate activities should be carried out after sitting for a long time or standing guard on duty to promote blood circulation and reduce the occurrence of chilblains.

5. It is not advisable to roast or scald with hot water immediately after being frozen to prevent ulceration into sores.

6. For the parts that are prone to chilblains, the warmth should be strengthened.

7. For those who develop the disease every year, it can be treated in winter and summer, and it is advisable to increase the intake of vitamin A, vitamin C and minerals before entering winter, and take niacinamide and calcium tablets orally to improve the body's cold resistance. Or apply ginger slices and chili peppers to the areas prone to chilblains, twice a day, to reduce or avoid the occurrence of chilblains.

Chilblains, also known as frostbite, are a type of injury caused by low temperatures. It usually appears on areas of the body that are more exposed to cold, such as the fingers, toes, ears and nose. There are many reasons for this, and we will explain it from multiple perspectives below.

Low temperatures are one of the main causes of chilblains. When the temperature drops below zero, the water in the human tissues will condense into ice crystals, which will cause cell edema and blood vessel constriction, thus affecting the normal metabolic function of various organs in the body. If you are exposed to low temperatures for a long time, the tissues around the body and the blood in the blood vessels will be damaged, which will increase the risk of chilblains.

Humidity is also an important factor in causing chilblains. When the cavity is exposed to a high humidity environment for a long time, it is easy to lead to poor water evaporation, which further aggravates the sensitivity and damage to the low temperature environment. Especially for those who wear gloves or shoes and socks for a long time, when they sweat, moisture will cause the temperature inside the gloves or shoes to drop rapidly, which can easily lead to the occurrence of chilblains.

Physical constitution and age are also one of the factors in the occurrence of chilblains. People who are weak, immunocompromised, and malnourished are more susceptible to the effects of a cold environment, which leads to the occurrence of chilblains. The elderly, on the other hand, become fragile and sensitive due to poor thermoregulation and blood circulation, and are more prone to chilblains.

Being in a closed environment with poor air circulation for a long time is also one of the causes of chilblains. For example, sleeping in an open-air tent without warm equipment for a long time, or when the driver closes the window while driving for a long time, the temperature around the human body is constantly dropping, which increases the risk of chilblains.

In order to prevent the occurrence of chilblains, we can wear warm clothing, pay attention to timely warm measures when outdoor activities or work, and pay attention to avoid excessive humidity environments. For people who need to wear gloves or shoes for long periods of time, change hand washing covers and shoes regularly, and keep the inside of gloves and shoes dry. In daily life, it is necessary to exercise more, maintain good health, enhance immunity, and reduce the incidence of chilblains.

Chilblains occur due to a combination of factors. We need to reduce the risk of chilblains and protect the health of ourselves and our families through multi-faceted preventive measures. Before the arrival of winter, the use of some warm energy repair essence and other products can also help to moisturize and repair, which can better prevent the occurrence of chilblains.