Urticaria is an allergic disease with a variety of allergic causes, sometimes difficult to determine, the common onset factors are the following.
I. Food allergy
1, animal protein foods such as fish, shrimp, crab, dairy meat eggs, etc.
2, plant foods such as bamboo shoots, spinach, mushrooms, shiitake mushrooms, eggplant, scallions, citrus, plums, strawberries, and nuts such as chestnuts, white fruits, walnuts, peanut butter and aromatic seasonings and other so-called “hair”.
3, some other types of food for some people can lead to allergies, such as wine, chocolate and acrolein (digestion of fat and frying substances produced when eating a substance); there are added to the food coloring, flavoring, preservatives; natural or synthetic substances in food, such as yeast, salicylic acid, citric acid, and other foods added to the mint, such as mint candy fruit, mint cigarettes or pastry food.
Patients with hives caused by these food allergies must “avoid” them. If necessary, you can do food intolerance and other allergen tests to clarify the allergen and target the “taboo”.
Second, drug allergies
Many drugs can cause this disease, the most common is penicillin.
Inhalant allergy
Such as pollen, animal dander, feathers, fungal spores, dust, formaldehyde, acrolein, castor powder, cosmetics, pyrethrum, gas and other inhalation can cause this disease, such patients are accompanied by respiratory symptoms. This kind of allergy can be detected by injection or puncture allergens, and desensitization treatment can be performed after clarification.
Infectious factors
1, bacterial infections such as acute tonsillitis, pharyngitis, impetigo, boils, cholecystitis, appendicitis, pancreatitis, paranasal sinusitis, etc.
2, viral infections Most commonly seen in the prodromal phase of viral hepatitis and jaundice, coxsackie virus infection, infectious mononucleosis in the occurrence of the disease is directly related.
3, parasites such as Plasmodium, roundworms, hookworms, pinworms, amoeba, trichinella, flagellates and other intestinal parasites, as well as schistosomes, filarial worms, cysticercus.
The treatment of the above is mainly based on the primary disease, and with the cure of the primary disease, the wind mass also disappears.
V. Insect bites
The bites of bees, wasps and other insects can cause wind clusters, and the hair scales of caterpillars, beetles, spiders and moths can cause wind clusters when they pierce the skin. Can be treated as papular urticaria, insect bite dermatitis.
Six, physical factors
1, pressure urticaria should try to avoid all kinds of mechanical stimulation, such as sedentary, long time pressure, underwear and belt tightening.
2, cold urticaria should be careful where you live, avoid wind and cold.
3, cholinergic urticaria should try to avoid hot and spicy diet, alcohol, strenuous exercise, emotional excitement, etc. Sunlight urticaria should be shaded and protected from the sun when going out.
VII. Mental factors and endocrine changes
Such as mental tension, emotional impulsiveness, etc. can trigger and aggravate the disease, should be avoided; menstruation, before and after menopause, pregnancy, etc. can also suffer from this disease.
VIII. Internal diseases
Wind mass often becomes a reaction of various medical diseases in the skin. If the disease is persistent, a systematic internal medical examination should be done to clarify the diagnosis to prevent delay.
Genetic factors
These patients are often familial, clinical treatment is more difficult, Chinese medicine is a good choice.