Childhood asthma, medically known as asthmatic bronchitis, also called pediatric bronchial asthma, is one of the common respiratory diseases in children. Relative to the seasons, pediatric asthma occurs mostly in winter and spring. According to surveys in some parts of China, the prevalence rate among pediatric patients is 0.5%-2%. Asthma can occur at any age, but most asthma patients begin to develop before the age of 5 years, and 50% of pediatric patients develop asthma before the age of 3 years. Therefore, active prevention and treatment of asthma in pediatric age is of great importance to the prevention and treatment of asthma in adults. Etiology 1.Cause: Common causative factors include dust, pollen, mold and mites, etc. Certain foods such as fish, shrimp, crab, seafood, etc. are also important allergens. 2, clinical symptoms: clinical manifestations of chest tightness, shortness of breath, asthma and other symptoms, mostly aggravated at night, forced to sit and breathe, cold sweat on the forehead, sleepless nights. 3. Preferred season and population cell immunity is weaker mainly in children, the elderly, and the injured and sick, so allergic asthma mostly develops in young age, and frail elderly and sick people are also the prevalent population of allergic asthma and cough. A large number of clinical medical statistics show that more than 80% of children’s asthma develops or recurs in late autumn. Prevention 1, look for allergens can go to the hospital to do skin allergy test, allergens more, such as pollen, alcohol, gasoline, mites, dust, etc., some children are allergic to a substance, and some are allergic to several substances, numerous studies have proved that not all asthma patients can find allergens, and not all patients with allergic reactions occur asthma, if you can find allergens, less exposure or no exposure to such substances If you can find the allergen, less or no contact with this substance, you can reduce the attack of allergic asthma in children. 2, supplemental nutrition to provide children with adequate nutrition, such as protein to be adequate (but pay attention to whether the child is allergic to a certain protein), eat more vegetables, do not let the child partial food, picky food. 3, strengthen exercise to pay attention to physical exercise from an early age, every day should be to outdoor activities, more fresh air. Infants and toddlers can do passive gymnastics, a little older children can do their own exercises, walking or jogging, which can exercise the function of the lungs. 4, to avoid infection to pay attention to the child’s warm and cold, especially when the seasons change and cold, timely increase and decrease clothing, try to avoid upper respiratory tract infections. 5.Drugs should always be available at home, such as antiasthmatic drugs: aminophylline, eugenol or aerosol asthma, etc., which can be used at any time when children have an acute asthma attack. What are the triggers of asthma? According to the epidemiological survey of asthma in children in China, the common triggers of asthma are: upper respiratory tract infection, cold weather, exercise, exertion, food such as fish, shrimp, eggs, milk, etc., irritant gases such as passive smoking, paint, oil fumes, etc. and drugs such as aspirin, alcohol, etc. In addition, all warm-blooded animal fur, house dust mites, fungi, cockroaches, and flower pollen are also triggering factors for some children with asthma. The high incidence of allergic asthma in children is between the ages of 1 and 6 years, with the first onset occurring under the age of 3 years and gradually decreasing after school age. The onset of pediatric asthma, especially in infants, is mainly caused by respiratory tract infections, so it is easily misdiagnosed as various types of respiratory tract infectious diseases. Since pediatric allergic asthma is largely influenced by genetic factors, parents who have a family history of allergic asthma or allergic diseases should make effective adjustments to their children’s possible genetic allergies as early as possible, and early improvement of their children’s allergic constitution is an important measure to prevent allergic asthma.