What is the cause of hot measles?

Hot urticaria is a kind of skin urticaria, which mostly occurs in young people and usually occurs after heat (hot drink, hot bath), emotional excitement and exercise. When you stop exercising or calm down, the symptoms will subside. In severe cases, symptoms may take months or years to completely subside.

Hot urticaria is usually caused by the following factors:

1. Drug-induced: Most drugs are caused by allergic reactions. Common drugs are penicillin, furazolidone, serum products, vaccines and so on. Its onset has a certain incubation period. Aspirin, morphine, atropine, vitamin B 1, polymyxin and other drugs are histamine releasing agents, which can directly stimulate mast cells to release histamine and cause urticaria.

2, mental stress, mood swings, depression, etc. It can also be the inducing factor of urticaria.

3. Food causes: mainly animal protein foods, such as fish, shrimp, crab, eggs, milk and other seafood, are common pathogenic factors. Some fruits and vegetables can also be sensitized. Adding condiments, preservatives and pigments to food, and natural or synthetic substances in food such as salicylic acid and citric acid can also cause urticaria.

4, cold, heat, sunshine, friction, oppression, mechanical stimulation, etc.

5. Gastrointestinal diseases, tumors, connective tissue diseases, endocrine disorders and metabolic disorders can also be the causes of urticaria.

6. Inhale animal dander, pollen, fungal spores, dust, feathers, etc.

7, such as bacterial infection, fungal infection, viral infection, parasitic infection, etc. Will lead to.

8. The causes of urticaria include mosquitoes, fleas, bees, wasps and other insects.