Harm of cold urticaria

With the arrival of winter, the weather is getting colder and colder, the pores are shrinking, and the secretion of sweat glands is reduced, which is the high incidence of various skin diseases, and urticaria is the most common skin disease among many skin diseases. In early winter, some patients' hands and faces will feel itchy when they are blown by cold air or touched by cold water, and then they will appear red, swollen and rash. In severe cases, there will be wind masses all over the body. The main reason for its onset is that due to the stimulation of cold, the body produces a substance called kinin and bradykinin, which dilates capillaries and increases the permeability of blood vessel walls, thus producing wind masses.

In the face of this menacing disease, how can we prevent it?

First of all, urticaria, commonly known as rash, is a localized edema reaction caused by the expansion and permeability increase of small blood vessels in skin and mucosa, which generally subsides within 2 ~ 24 hours, but new rashes appear repeatedly, and the course of disease is delayed for several days to months. Simply speaking, it is a symptom of skin allergy, which belongs to allergic diseases and is not contagious.

1, preventing urticaria in winter, keeping warm is the first priority.

In winter, the skin may be allergic to cold, which is called "cold urticaria" or "cold urticaria" in medicine. This is a special type of urticaria. There are usually red or pale white puffy urticaria on the exposed skin, mainly distributed in the head and face, and also in the limbs and trunk of patients with severe cases, which will cause severe itching of the skin.

To deal with this kind of urticaria caused by cold, the most important thing is to do a good job of preventing cold and keeping warm. It is necessary to avoid the cold north wind directly irritating the facial skin and avoiding the hands and feet from touching cold water. If you have a rash, you should see a doctor in time.

2. Regulating allergic constitution is the key.

Medical research has found that TH 1 and TH2 in human body are mutually regulated by cytokines. In healthy condition, TH 1 and TH2 will be balanced and regulated by helper T cells at the same time. When helper T cells lack regulatory ability or come into contact with some foreign proteins or small molecules (such as dust mites, pollen or seafood, etc.). ), TH2 is over-activated, which leads to excessive secretion of TH2 cell hormones and increase of IgE.

To reduce IgE antibody, it is necessary to supplement anti-allergic probiotics to reduce serum IgE antibody. By promoting the secretion of interleukin 12(IL- 12) and interferon γ, antiallergic strains can effectively improve allergic symptoms, regulate Th 1 immune response, inhibit immunoglobulin IgE, and improve the allergic phenomenon of Th2 immune response. Anti-allergic probiotics combine with receptors on intestinal wall dendritic cells, activate the translation proteins in cells to move to the nucleus, and release a large number of cytokines, which is a link of innate immunity. Therefore, diabetic substances such as peptidoglycan, lipopolysaccharide and polysaccharide can indeed regulate allergic constitution through innate immune system and play a good therapeutic role in urticaria.

3. Open the window for ventilation in time.

Secondly, many friends like to close doors and windows in cold weather, but it gets warmer when it gets warmer. As we all know, dust is easy to accumulate indoors, and dust mites are also easy to produce in high temperature rooms. Families with pets are also prone to form allergens because of the hair taken off by pets, which in turn leads to urticaria.

4. Pay attention to skin care in cold season.

Don't use strong alkaline soap when taking a bath, and don't use other bath soaps too often; You can add some hot water to cold water when washing clothes. Wear loose, cotton and soft clothes at home, and beware of tight clothes, which will lead to more serious skin reactions.

5. Pay attention to develop healthy eating habits.

Avoid eating irritating foods, such as hot pot to keep warm in cold weather, but friends who are allergic to mutton, dog meat, seafood and other foods are prone to urticaria due to food allergies. People with this allergy should avoid eating mutton, dog meat, seafood and other foods.

6. Strengthen physical exercise and maintain a healthy attitude.

Take part in more physical exercises at ordinary times to improve your body's adaptability to weather changes. In particular, it is necessary to strengthen the cold resistance of the skin. And maintain a good attitude, in addition, urticaria should not be scratched, scratching can not only stop itching, but also may be more itchy and more serious.