Asthma prevention and control should start with the triggers, and preventive medicine is the best strategy to prevent and control asthma attacks, and focus on the prevention and control of asthma in children. Etiology: About 7-8% of asthma patients are allergic to mites In early studies, it has been found that the use of cellular coal affects the onset of asthma, which has raised the importance of air pollution as a cause of asthma. As related research has progressed, air pollutants for asthma are no longer limited to PM2.5, PM10, TP (total phosphorus), TSP (total suspended particulate matter), SO2 (sulfur dioxide), NO2 (nitrogen dioxide), but also include some allergens, such as mites, pollen, etc. In the warm and humid south, mites are very abundant, and it is one of the most common allergens. About 70-80% of asthma patients are allergic to mites. Many asthmatic children do not develop asthma in winter, but they often have attacks in summer because there are many mites on the air conditioner filters, and the mites are blown into the air after the air conditioner is turned on, causing asthma or allergic rhinitis attacks in children. According to the survey, among the cities of Shenzhen, Guangzhou, Chongqing, Xi’an, Beijing and Shenyang, the concentration of mites on the filters of air conditioners in Guangzhou is the highest, 2-3 times higher than in the north. It is recommended that if there are children with allergic rhinitis or asthma in the family, the air conditioning filters should be cleaned once a week to reduce the chance of children developing the disease. This is also a very important aspect of air pollution causing asthma. Beware of pollen allergies leading to acute asthma attacks When it comes to pollen-induced rhinitis or asthma attacks, the most common places in China are Xinjiang and Inner Mongolia, where there is more artemisia-type pollen in August and September, leading to swollen eyes, swollen face, measles, along with asthma and other allergic symptoms, there is no artemisia pollen in Guangdong, but there is humulus pollen, commonly lychee, osmanthus and rose. There is more pollen in spring and summer, and because we cannot get away from this atmospheric environment, we should be prepared for emergency treatment and preventive treatment: Emergency treatment: If a patient has an acute attack of asthma caused by pollen, he or she should prepare his or her own temporary control medication, and can save himself or herself in time when the attack occurs, the most commonly used being bronchodilators. Prophylactic treatment: Start using prophylactic medications when pollen season arrives, and do not wait until symptoms appear to treat them. For example, inhaled glucocorticosteroids or oral cisplatin (montelukast sodium) can reduce the inflammation of the nose and airways caused by pollen, which is much better than treating it after serious symptoms have developed. Prevention and treatment: short-term symptom control + reducing the risk of exacerbation The updated GINA 2015 and 2016 Chinese bronchial asthma guidelines focus on two aspects, one is short-term symptom control and the other is reducing the risk of exacerbation. In the past, the focus of asthma treatment was on strengthening short-term control and just getting the symptoms under control, but now it is different and reducing the risk of exacerbations is equally important. For example, in places like Australia and the United States, newspapers report, like weather forecasts, what the concentration of certain pollens is at a certain time, and if the concentration is too high, the child is advised to move to another place, which reduces the risk of an attack. You can also use air purifiers to reduce indoor triggers such as PM2.5, pollen and mites. I have an air purifier at home and my rhinitis has not flared up for three months and it still works. This is one of them, assuming you use air purifiers properly for some families with significant rhinitis or asthma, local environmental purification, should be said to be useful. Preventive medication also belongs to the category of reducing the risk of attack, when asthma attack, crowded places or places with dirty air should be avoided as much as possible. Avoid stopping the use of medication A large proportion of asthma patients in China do not have their condition under control. Many Chinese asthma patients belong to the difficult to treat category, especially children, because of their poor compliance. It is not uncommon for children to stop treatment after a period of time, or to stop using the medication after it has been prescribed. Another is the misconception of parents, for example, some parents think that the use of glucocorticoids will affect the development of their children. Childhood asthma is the focus of prevention and treatment Childhood asthma is a very critical component of asthma prevention and treatment, and occupies a very important position in asthma treatment. Academician Zhong Nanshan explained that the vast majority of adult asthma starts in children, and most of them start to lay the roots of the problem in childhood. For example, if a child has had a viral infection and has some symptoms of asthma, great care should be taken to prevent him from catching a cold, and another viral infection will easily develop into asthma. In addition, asthma in children is often easier to treat, and it is influenced by simpler factors, unlike adults, where occupational problems, obesity, heart disease, smoking and other bad habits may affect the onset.