What are the allergens of urticaria?

? There are several allergic sources of urticaria, each of which may lead to the outbreak of urticaria to some extent. When we treat urticaria, we need to find out the cause of urticaria and then prescribe the right medicine to get the expected therapeutic effect. 1. Drug-induced: Most drugs are caused by allergic reactions. Some common drugs in life are histamine release agents, which can directly stimulate mast cells to release histamine and cause urticaria. 2. Food induction: 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. 3. Inhale animal dander, pollen, fungal spores, dust, feathers, etc. This is a very common allergic source of urticaria. 4. Such as bacterial infection, fungal infection, viral infection and parasitic infection. 5. Insects such as mosquitoes, fleas, bees and wasps. 6, cold, heat, sunshine, friction, oppression, mechanical stimulation, etc. 7. Gastrointestinal diseases, tumors, connective tissue diseases, endocrine disorders and metabolic disorders can also be the causes of urticaria. 8, mental stress, mood swings, depression, etc. It can also be the inducing factor of urticaria. 9. It runs in the family. The above is our analysis, hoping to help you find the cause of your own urticaria. I wish the patient a speedy recovery.