What causes urticaria?

summary

We know that once there is a wheal like rash on the skin, we can be sure that we have urticaria. The diagnosis of urticaria is very simple, but it is often not easy to diagnose the cause. What causes urticaria? Next, I'd like to share my views with you.

What causes urticaria?

First: drug induced: the vast majority of drugs are caused by allergic reactions, common drugs are: penicillin, furazolidone, serum products, vaccines, etc. It has a certain latent period. Aspirin, morphine, atropine, vitamin B1, polymyxin and other drugs are histamine releasing agents, which can directly stimulate mast cells to release histamine and cause urticaria.

Second: food causes: common pathogenic foods include fish, crab, shrimp, eggs and other foods rich in animal protein, as well as some commonly used seasonings, food colors, preservatives and so on. There are also nuts, fruits and vegetables that can cause skin allergies.

Third: inhale animal dander, pollen, fungal spores, dust, feathers, etc. Mosquitoes cause: such as mosquitoes, ants, fleas, bees and other insects bite, and some people may have allergic reactions to common butterflies, moths and even ladybugs.

matters needing attention

1. Avoid raising some pungent flowers with strong smell. It's easy to be allergic if you inhale pollen. Life must be self-discipline, it is best not to develop bad habits, such as drinking, stimulating mood, intense activities do not participate, because these will aggravate the skin vascular expansion, will aggravate the condition of urticaria. 2. It's better not to eat spicy food. Because it will reduce the digestive capacity of the body, resulting in food staying in the body for a long time, it is easy to produce polypeptide protein, resulting in a greatly increased risk of skin allergy.