Allergies, dermatologists have wonderful tricks

Itchy itching, swollen swelling, cough, cough ... yes, you are allergic again! Food, dust, pollen ... There are thousands of allergens, there is always one entangled with you. What is even more terrible is that the "allergies" are growing and stronger, and allergic combats are becoming more and more intense. In the past 20 years, the prevalence of increasing prevalence is increasing. It is expected that half of the world will have allergic diseases in the world in 2050. July 8th is the World Allergic Disease Day. The deputy chief physician of Dong Zhengbang, the dermatology department affiliated to the Southeast University, tells you about allergies.

What is allergy?

Deputy Chief Physician of Dong Zhengbang introduced that allergic reactions are also called perverted reactions and superfluous reactions, which is a very common phenomenon of humans. Generally speaking, allergic reactions are the protection reactions caused by the body to harmful environmental material, plant chemical ingredients, stimuli, air particles, etc., through sneezing, cough, itching, vomiting, and diarrhea. , Gastrointestinal or skin excrete. But sometimes, these defenses become extreme. Even if they are exposed to a small amount of allergies, the human body will react, which will eventually lead to the symptoms of allergic symptoms of the pathogenesis, which is called allergic diseases or perverted reactive diseases.

The reason for allergies is that its "radiation" range is wide. It is a systemic disease that can occur in any part of the body, but it is more common in the nose, skin, eyes, tracheal bronchials, nervous systems, and gastrointestinal tract. The medical term "allergies" refers to allergies that contain multiple systems including eczema, asthma, pollen and food allergies.

How much is allergic?

Deputy Chief Physician of Dong Zhengbang introduced that there are many factors for allergic diseases. At present, genetic factors and environmental factors are clear. If there are allergies in the parents or siblings, their children are risk of allergic diseases. In the early stages of life, such as fetus, newborns, and even when they first learn, they are the best time to learn how to tolerate.

Experts point out that with age, the manifestations of allergic diseases will change in stage, and the phenomenon of different allergic symptoms in each system will continue to occur. For example, the earliest occurrence of babies is specialty dermatitis and food allergies. After 1 year old, repeated asthma and asthma, allergic conjunctivitis and allergic rhinitis gradually occur. Therefore, the prevention and treatment of allergic diseases should start with the earliest characteristic dermatitis.

Featured dermatitis is complex and difficult to entangle

According to experts, special dermatitis is a typical allergic skin disease. Chronic eczema -like rash and severe itching of skin dryness and repeated attacks often occur. Such patients are mostly allergic diseases such as allergic rhinitis and asthma.

The incidence of characteristic dermatitis is the result of the common role of genetic and environmental. Genetic factors mainly affect skin barriers and immune balance. Patients often have defects of polyphin genes, causing reduction of clusterin synthesis in the epidermis, or even lack of lack, manifested as dry skin. Environmental factors include climate change, lifestyle changes, incorrect bathing, infection and primary stimulation. Excessive hygiene, Western -style diet and other modern lifestyles, as well as environmental exposure to environmental pollution and passive smoking, may also participate in the onset of special dermatitis.

Be wary of allergies to eat

Food allergy is a common cause of allergies in daily life. Especially for milk protein allergies, it is a common allergic disease in infantile periods. This is related to the family allergies of infants and young children's family allergies, immature intestinal barrier functional development, and imperfect immune system development.

Experts introduced that food allergies are different from tolerance. In addition to gastrointestinal symptoms, skin symptoms and respiratory symptoms may occur. Typical gastrointestinal symptoms are manifested by nausea, abdominal pain, intestinal colic, vomiting, diarrhea, etc. within a few minutes to 2 hours after eating allergic food. stomach ache.

The skin is the second most commonly used target organs. Allergic foods can soon appear skin symptoms or worsen the symptoms of chronic allergies. Common allergic symptoms include urticaria and vascular edema, and special dermatitis. Food allergies rarely cause respiratory symptoms such as asthma or allergic rhinitis, but sometimes it may cause increased airway reaction.

Allergen testing out of "real murderer"

Deputy Chief Physician Dong Zhengbang pointed out that in addition to the diagnosis of allergic diseases, in addition to inquiring the medical history and physical examination in detail, allergen testing is also an important means of diagnosis and evaluation of allergic diseases. In addition, finding allergens and giving targeted prevention and control, it is also important clinical significance to reducing the onset of allergic diseases.

According to experts, allergen testing is mainly divided into two categories: in vivo testing and in vitro detection. In vitro tests mainly include skin tests and oral food stimulation tests; in vitro testing mainly include allergen detection of IgE dependencies and non -IGE -dependent eosinophilic cells. The main thing to note is that IgE relies on allergens to detect positive only as a sensitivity state, and it is not the same as suffering from allergic diseases. It should be interpreted in combination with the history of previous allergies and clinical symptoms.

Allergen testing helps to remind patients to stay away from allergens and carry out desensitization treatment of allergens. However, it should be noted that desensitization treatment is a long process. Generally, it takes two or three years, and it has a certain risk. The curative effect varies from person to person. It is not suitable for all allergies. And hard work.

Daily management is important

Experts suggest that severe allergic diseases can accumulate airway, breathing and circulatory systems, and hypotension or bronchial spasm or laryngeal symptoms cause death.At this time, we should actively treat self -treatment and seek medical assistance, and go to medical institutions for further diagnosis and treatment as soon as possible.In addition, experts remind that daily treatment and management of allergic diseases should be considered as a whole. In addition to the necessary drug treatment, health education is also very important.Patients and their families should understand the relevant health knowledge of allergic diseases, focus on environmental, diet, exercise, and emotional reconciliation, avoid events and allergens that are likely to cause diseases and allergies, thereby better and faster control.(Liu Min compiled)

- END -