What are the causes of acute urticaria

Skin disease is the most painful disease, especially urticaria, which not only causes itchy skin, but also has a certain impact on our appearance, such as redness and swelling of the skin. When looking for treatment methods, we must first understand the cause of acute urticaria, so that we can prescribe the right medicine. So let us understand the cause of acute urticaria together?

① Physical factors: They are common factors of urticaria, such as cold, heat, sunlight, mechanical stimulation, etc., which are mostly seasonal.

② Food: It is a common cause of urticaria, such as fish, shrimp, crab, eggs, milk and other foreign protein foods. Next are chocolate, coffee, tomatoes, mushrooms, strawberries, whole grains (bean flour, buckwheat flour), condiments (chili, pepper, raw onions, raw garlic, vinegar), etc.

③Drugs: such as furazolidone, penicillin, sulfonamides, serum products, neomycin, etc. can cause allergic reactions and wheals. Secondly, drugs such as morphine, codeine, atropine, aspirin, etc. can directly stimulate mast cells to release histamine and cause wheals. In clinical disease classification, these should be classified as urticarial drug eruptions.

④ Inhalation of pollen, animal dander, feathers, dust, fungal spores, volatile gases, etc. These are mostly seasonal, occupational, regional, and may be accompanied by allergic rhinitis, asthma, etc.

⑤ Animals and plants: such as mosquito, lice, flea, bedbug bites or wasp, bee, caterpillar, nettle and other stings that penetrate the skin and cause skin allergic or non-allergic reactions, resulting in a wheal-like rash. Papular urticaria is caused by insect bites.

⑥Infection: Chronic lesions or parasitic infections in the body caused by bacteria, fungi, viruses, etc. Local degenerative necrotic substances and metabolites have antigenic effects or change the body's stress state, causing allergic reactions and wheals;

⑦Genetic factors: A small number of patients have familial cold urticaria, hereditary familial urticaria syndrome, etc.;

⑧Mental and endocrine factors: Mental stress, mood swings, or some endocrine diseases, metabolic disorders, etc. can also induce urticaria.

Through the above explanation, now everyone has a certain understanding of the cause of acute urticaria. Only after understanding the cause can we find appropriate treatment methods. Here we must also remind everyone that if you have urticaria, you must pay attention to your diet and not eat irritating foods during treatment, as this will affect the treatment effect.