Is acute urticaria contagious?

Urticaria is a very common disease, which is generally divided into two types: acute urticaria and chronic urticaria. There are many causes of this disease, the most common of which is caused by cold. It is a disease that causes headaches for many people, and there are many causes of it. For example, some common foods and medicines may become the causes.

Once infected, acute urticaria will cause itching of the skin all over the body and may cause some herpes. Since acute urticaria is so difficult to control, is this disease contagious? First, let's look at the cause of this disease. Common causes of acute urticaria include:

① The most common foods are fish, shrimp, crab and eggs. Secondly, certain spices and condiments can also cause it.

② Drugs. There are many drugs that can cause this disease. Penicillin, sulfonamides, furazolidone, serum vaccines, etc. often cause urticaria through immune mechanisms. Drugs such as aspirin, morphine, atropine, and vitamin B1 are histamine releasers that can directly cause mast cells to release histamine and trigger urticaria.

③ Infection, including viruses (such as influenza virus, hepatitis virus), bacteria (such as Staphylococcus aureus), fungi and parasites (such as roundworms, etc.).

④ Animal and plant factors, such as insect bites or inhalation of pollen, feathers, dandruff, etc.

⑤ Physical factors such as heat, cold, sunlight, friction and pressure can cause it. In addition, gastrointestinal diseases, metabolic disorders, endocrine disorders and mental factors can also cause it. During the anti-allergy period, patients should pay attention to eating light food and avoid places with strong odors, such as flower shops, flower and bird markets, etc.

Well, now you should know the cause of urticaria. Urticaria is a common disease caused by allergic mechanisms. This disease can generally be caused by many allergens such as milk, pollen and food. Since acute urticaria only affects people with allergic constitutions, it is generally not contagious.