According to the results of the third national survey on the prevalence of asthma in urban children, the cumulative prevalence of asthma in urban children in China is 3.02%, which is 53.3% and 177.1% higher than that of 10 and 20 years ago, respectively. Therefore, it is imperative to strengthen people’s understanding of the current situation of asthma and enhance the awareness of asthma prevention and treatment among patients and the public. Classification of asthma Asthma attacks have seasonal and perennial two categories 1, seasonal people are mostly outdoor fungi, pollen caused. Spring and fall seasons, a variety of pollen particles floating in the air, allergic people inhaled after the nose itch, sneezing, coughing and asthma attacks. In addition, spring and fall climate changes stimulate the bronchial tubes can also lead to asthma attacks. 2, perennial attacks are mainly caused by indoor allergens such as dust mites, indoor fungi, etc., without obvious seasonality. Infant asthma occurs most often in winter, and is closely related to respiratory infections. Symptoms of asthma Asthma is mainly characterized by recurrent episodes of chest tightness, coughing, wheezing, dyspnea and other symptoms of airway obstruction. Compared with adults, the symptoms of asthma in children are sometimes not very typical, especially in infants and young children, asthma often begins with a cold, runny nose, and often combined with upper and lower respiratory tract infections, prone to coughing, shortness of breath and other symptoms, and another portion of children with an irritating dry cough, it is easy to be misdiagnosed by the doctor. Parents in the discovery of the child suddenly coughing, expiratory effort or breathing with whistle, especially at night, these manifestations, antibiotic treatment is ineffective, lasted more than 4 weeks, or coughing and wheezing at the same time accompanied by sneezing, runny nose, nasal congestion, itchy nose and eyes and other allergic symptoms should be timely to asthma clinic, such as diagnosis of asthma, need to be timely and standardized treatment. The nature of bronchial asthma is a chronic non-specific inflammation of the airways, even in the asthma remission period, asthma symptoms are under control, this inflammation can still exist, there is still the possibility of another attack of wheezing. Therefore, asthma patients need to be under the guidance of a doctor for a long time continuous regular medication, so as to achieve “long-term anti-inflammatory” to avoid wheezing attacks. With proper treatment, most asthma symptoms can be controlled quickly, and most children’s asthma can be completely controlled.