With the recent drop in temperature, asthma has entered the high season again, and the number of patients visiting hospitals for acute asthma attacks is also on the rise. In order to keep asthma patients “safe” through the winter, we need to do a good job of prevention. In autumn, the temperature difference between day and night is large, so it is important to pay attention to the appropriate increase and decrease of clothing for children to adapt to the weather changes. For those who are physically stronger, attention can be paid to moderate autumn freezing to enhance immunity to cold. Parents should add or remove clothes in a timely manner for those with poor health. The material should be careful not to choose wool, duck down, animal fur clothes and polyester and other chemical fiber clothes to avoid causing allergies or asthma attacks. The clothes of asthma patients must be exposed to the sun frequently. Inhalation of cold and dry air is bad for children with asthma and should be avoided when going outside during an asthma attack. Pay attention to avoiding allergens. Muddy air, dust mites, pollen, mold and animal dander have been associated with asthma attacks. It is recommended to close doors and windows on foggy days and wear masks outside. Medical anti-haze masks can block 90-99% of PM2.5 particles. When the weather is good, open windows more often to keep indoor air circulation, keep your home clean, and vacuum often to remove mites. Desensitization treatment (dust mites) is also available. Parents should not smoke in the room, and try to avoid passive smoking in children. The chemicals in cigarettes and the smoke emitted when smoking can have a direct effect on asthma patients. Patients should try to avoid respiratory infections. The most common triggers of asthma are respiratory viral infections, which have been shown to be associated with 80% of childhood asthma attacks. Patients should reduce access to public places and refrain from contact with patients with colds. Those who are not allergic to influenza vaccine can receive influenza vaccine. Pay attention to exercise to strengthen immunity, but should not exercise outdoors when the temperature is very low or in foggy weather. Pay attention to dietary regimen. The dry climate in autumn makes it easy to damage yin and lung, so the diet should focus on protecting yin and preventing dryness, nourishing the kidneys and moistening the lungs. Pay attention to food allergy prevention, do not eat foods that can cause asthma attacks, and eat less spicy and greasy food. Eat more vegetables and fruits. Some vegetables, such as radish and loofah, have the effect of lowering gas, resolving phlegm and clearing the lungs, and some fruits, such as pear, banana and loquat, also help keep the bowels open. Asthma patients should also lead a good lifestyle, work and rest regularly, do not overwork, and always be in a happy mood. Patients should always be in contact with their primary care physician and use preventive medications under the guidance of their physician in order to control asthma as quickly and effectively as possible. The goals of current asthma treatment are to reduce the number of attacks, to reduce the severity of attacks, to prevent and control attacks, and to keep the growth and development of the child unaffected. For the vast majority of children with asthma, this goal can be achieved with systematic treatment.