What should I do if my body suddenly warms up and feels itchy in winter?

It may be cholinergic urticaria, which belongs to a "rash" that people often say. When you are heated, nervous, eating hot food or drink, or after exercise, your body temperature rises slightly. The heated blood flow stimulates the brain's thermoregulatory center, excites cholinergic nerves and releases acetylcholine. If you are allergic to this chemical, you may have an allergic reaction.

This allergic reaction has no rash, only a tingling sensation and severe itching. A red "wind mass" of about 2 mm can also appear on the skin near the trunk and limbs (except armpits, palms and soles). The wind mass came quickly and left no trace. Ordinary people may have mild cholinergic urticaria in adolescence. Generally, after stopping exercise or calming down, the symptoms can subside, so it is not easy to attract attention. The whole process can last for months to years, and those who have frequent attacks should go to dermatology for treatment in time. After treatment with antihistamines and anticholinergic drugs, the condition can be alleviated or alleviated.

treat cordially

Finding out the cause and removing the pathogenic factors is the way to cure the problem. But the cause of urticaria, especially chronic urticaria, is often difficult to find, so symptomatic treatment is often used in most cases. People who can't get rid of the disease should reduce various triggering factors, especially physical urticaria. At the same time, we should pay attention to avoid various factors that aggravate skin vasodilation. Can give

1. antihistamines: mainly H 1 receptor antagonists and H2 receptor antagonists. Various antihistamines have different antihistamines and other pharmacological effects. For example, cyproheptadine is effective for cold urticaria, and Antaile is effective for hot urticaria. For intractable urticaria, H 1 and H2 receptor antagonists can be combined to improve the curative effect.

2. Adrenal cortical hormone: used in acute severe or intractable cases, such as anaphylactic shock, serous urticaria, stress urticaria, etc. Hydrocortisone 100~200MG is added into 5% glucose solution for intravenous drip, or 30~40MG of prednisone is taken orally. This therapy is generally not suitable for long-term application.

3. Antibiotics: Those who are infected can choose appropriate antibiotics, especially urticaria caused by obvious or concealed gastrointestinal infections.

4. Drugs that reduce vascular wall permeability: such as vitamin C, vitamin P, calcium, etc. Often used with antihistamines.

5. Sympathomimetic drugs: mainly used for severe acute urticaria's disease, especially when there is anaphylactic shock or laryngeal edema. Subcutaneous injection of 0. 1% epinephrine 0.5~ 1 ml. In severe cases, it can be injected again every 20 to 30 minutes.

6. Histamine globulin: It is a drug that promotes the production of antihistamine antibodies in the body, and has a good effect on chronic urticaria, especially mechanical and cold urticaria. 2~4 ml intramuscular injection each time, 65438+ 0~2 times a week, 6~8 times as a course of treatment.

7. Others: oral vitamin K, vitamin E, vitamin B 12, aminophylline, reserpine, chloroquine, intravenous aprotinin, 6- aminohexyl, sodium thiosulfate, heart and tissue therapy, autologous blood therapy, etc.