Urticaria is usually caused by allergies, and its main causes may be related to insect bites, environment, diet (such as milk powder and milk), drugs, infection and other factors. It is suggested to take cetirizine or loratadine orally, and pay attention to eating less food with high protein content such as fish, shrimp and milk. For patients with long-term recurrent attacks, it is recommended to go to the hospital for routine blood tests to see if it is caused by infection, because allergies caused by infection may be repeated many times; If the test results suggest infection, you can take antibiotics orally.
The cause of urticaria is very complicated, and about 3/4 patients can't find the cause, especially chronic urticaria. Common reasons are: food and food additives; Inhalation; Infection; Drugs; Physical factors such as mechanical stimulation, cold and heat, sunlight, etc. Insect bites; Mental factors and endocrine changes; Genetic factors, etc. If the cause is found, it must be removed to avoid contact with allergens.
Where is the root of urticaria attack?
Recurrent urticaria is mainly due to physical problems, mostly idiosyncratic people. General antiallergic drugs can only be used for symptomatic treatment and cannot achieve the goal of complete cure.
Allergic urticaria is urticaria induced by allergic factors, and most urticaria is caused by allergic mechanism. For example, allergens in food (mostly foreign proteins) stimulate the human body, causing the human body to produce specific antibody IgE (immunoglobulin E), which is attached to mast cells or basophils in the body and does not cause allergic reactions.
However, when people with specific antibody IgE eat this food again, IgE antibodies will combine with allergens in food, causing mast cells and basophils to release histamine. Histamine also acts on blood vessels, dilating blood vessels and increasing permeability, so a large amount of protein and liquid seep into skin tissue, resulting in urticaria, which is the pathogenesis of urticaria.
The above allergic urticaria belongs to type I allergic reaction. Many urticaria belong to this mechanism. The most common case is protein, where urticaria is caused by animals such as mutton, fish, shrimp, shells, crabs, milk and eggs, and plants such as strawberries, tomatoes and garlic. Oral or injected drugs, mold spores, pollen and chemicals inhaled in the air, and products of various infections or infectious diseases are all factors that cause allergic urticaria.
How to relieve urticaria?
Conventional symptomatic treatment of urticaria
Antiallergic drug therapy: antihistamines are still the basic drugs to treat chronic urticaria, but we should pay attention to the changes of antihistamine treatment strategies; The second generation of non-sedative antihistamines is the first choice for the treatment of chronic urticaria. When it is ineffective or the treatment response is poor, the reason is that antihistamines can not completely block the three major events after mast cell activation, including degranulation, synthesis and release of inflammatory factors and prostaglandin metabolism. Advocate the principle of giving priority to increasing dosage. Considering that the occurrence and development of urticaria involves many links, the first generation of antihistamines should be the first choice for combined medication. However, although the conventional drugs for treating allergies are effective, they also have great side effects and are easy to repeat.
2. Systematic therapy
Immuno-antiallergic: The increase of serum IgE is the most powerful hint of allergic diseases, so controlling the balance of immunoglobulin in the body is an effective means to treat recurrent urticaria. Experts treat patients with urticaria in groups, one of which is given conventional antihistamines; The other group was given antihistamine combined with Xinmin Kang anti-allergic probiotics. The results showed that the effect of antihistamine combined with Xinminkang anti-allergic probiotics was better than that of antihistamine alone.
Through analysis, it is found that the formula of Xinminkang anti-allergic probiotics contains a variety of probiotic strains with anti-allergic effect, and advanced extraction and fusion technology is adopted to further improve the human acceptability and anti-allergic ability of probiotics. Xinminkang can effectively improve allergic symptoms by promoting immune system to secrete interferon γ; Stimulation of immune cells by human microbial cells can reduce the production of specific IgE antibodies in serum, reduce the stress response of allergens in immune cells, improve allergic constitution, block allergic process and prevent the recurrence of allergic diseases.
Step 3 stay away from allergens
Patients with urticaria should avoid contact with allergens and should not inhale some allergens, such as animal fur fungi and dust mite powder. , and should not be exposed to paint, gasoline or cosmetics for a long time. Urticaria patients must go to the hospital to check allergens, stay away from allergens, and prevent secondary irritation to the nose.
Remember 4 points to prevent urticaria.
Dietary contraindications: Patients can avoid eating allergic or irritating foods such as fish, shrimp, crabs and peppers according to their own conditions, and do not drink alcohol, strong tea or coffee, so as not to aggravate their illness.
Environmental maintenance: the clothes at home should be washed and dried frequently. Don't put it on as soon as you take it out. Cover it. Remove mites and dust in time. It is best not to keep pets such as cats and dogs, and keep the living environment clean.
Pay attention to mental health: most chronic urticaria does not affect the health and natural life span of patients' internal organs. Patients can maintain a peaceful mind without anxiety. Always keep anti-allergic drugs at home, adhere to drug treatment according to the doctor's advice, and don't stop taking drugs on your own.
Pay attention to cold and warmth: avoid catching cold and pay attention to cold and warmth; Avoid hot bath, too high water temperature will aggravate urticaria. In addition, clothes should be loose.