The weather is getting colder. Why can you be allergic when you touch cold water? Please thank you.

Cold allergy, also known as meteorological allergy, also known as cold urticaria. Most of them occur in the period of strong wind cooling and sudden drop of temperature. The investigation of the cause of the disease shows that about13 of the general population is sensitive to the sudden change of temperature, which is related to age, and generally increases with age. For example, teenagers are very sensitive to the weather. 0? 4, middle-aged people increased to 1/3, and the elderly can reach 1/2. There are also obvious differences between different sexes. Women are more sensitive than men, accounting for about 1/2 of the total number of women, while men are only? 0? About 4 o'clock. People in different regions also have obvious differences. People in tropical or subtropical areas are more sensitive than people in cold areas, about 1/2, while people in cold areas are only? 0? About 4 o'clock. The most common clinical symptom of cold allergy is "cold rash", which is as big as a rash and as small as a needle tip, and is more common in exposed parts of the earth's surface. Most of the patients are facial flushing, sweaty hands and feet, inattention, hypomnesis, lethargy, fatigue, anxiety and depression, and some are easily excited and suffer from nervous system symptoms such as insomnia. Treatment and Prevention In recent years, our hospital has used oral desensitization and antipruritic concentrated granules to treat cold air allergy (also known as cold shock urticaria), balance yin and yang, improve allergic constitution, and achieved satisfactory results. For the treatment of "Desensitization and Zhiyang Concentrated Granules", take 30 bottles of "Desensitization and Zhiyang Concentrated Granules" every 30 days, and take 1 bottle with boiling water every night before going to bed. Generally, it can be cured after 1-2 courses of treatment. Preventive measures to prevent the occurrence of cold allergy are: first, pay attention to cold and warmth when the temperature changes suddenly; second, insist on physical exercise at ordinary times to enhance physical fitness.

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