As the weather turns cooler, for the management of asthma in children, first, standardize asthma treatment; second, avoid as much as possible the triggering factors of asthma attack (such as cold, passive smoking, eating allergic food or too cold food, etc.); third, in case of acute asthma attack, parents should bring their children to the hospital in time. Properly understand asthma treatment drugs and do not reduce the dosage of asthma control drugs easily. Asthma is a chronic disease/ and treatment must be standardized and systematic. There are many kinds of drugs for asthma treatment, which are simply divided into two categories: one is curative drugs (also known as asthma control drugs), which can bring asthma under effective control and need to be used for a long time; the other is curative drugs (also known as asthma relief drugs), which are only used for a short time during acute asthma attacks. It is recommended not to reduce the dosage of asthma control medication easily in seasons with significant weather changes, even if the asthma symptoms are better controlled. Asthma control medications are mainly inhaled glucocorticoids (ICS), which can effectively reduce airway inflammation and airway hyperresponsiveness, control asthma symptoms, improve quality of life, improve lung function, reduce asthma attacks, and reduce asthma mortality, and are the most effective medications for treating airway inflammation. After the asthma symptoms are controlled, the patient should be evaluated regularly at least every 1 to 3 months at the hospital to determine the follow-up treatment plan based on the evaluation results. Parents should follow medical advice and not change the dose of asthma control medication without permission, especially when the weather turns cooler do not reduce or stop the medication easily as this may easily lead to an asthma attack. Short-term escalation of asthma control medication may be considered when cold symptoms are evident. Most upper respiratory tract infections in children are viral, and viral infections are the main triggers of acute asthma attacks. Acute wheezing attacks are often preceded by nasal symptoms such as sneezing, runny nose and coughing, and there is usually a “window of opportunity” of about 5 days between the onset of the aura and the acute wheezing attack. The risk of subsequent acute asthma attacks can be effectively reduced by preemptive intervention during this window. The results of the MIST (Maintenance vs. Intermittent Inhaled Steroids in Wheezing Toddlers) study suggest a regimen of budesonide suspension 1 mg/dose twice/day for 7 days. Avoid cold air inhalation as much as possible. When a cold wave comes, try not to let cold air be inhaled directly, and avoid strenuous outdoor physical activities; when the temperature difference between indoor and outdoor is large, take care not to let children with asthma walk suddenly from a warm room to the cold outdoor, and take proper protective measures to keep warm before going out; you can wear a mask, and pay more attention on hazy days. Prevent respiratory tract infections. During the flu season, it is best not to take children with asthma to crowded places, such as supermarkets, cinemas and fairs, and try to avoid contact with patients with colds; pay attention to indoor air circulation and keep indoor air fresh; develop good hygiene habits, wash face and hands regularly, and avoid others when coughing and sneezing; strengthen physical fitness and resistance. Try to avoid contact with allergens. Common allergens in autumn and winter include cold air, house dust, mites, animal dander, smoke, viruses and other microorganisms, as well as certain animal-based (such as shrimp, crab, shellfish, eggs, milk, etc.) or nut-based (such as walnuts, peanuts, pistachios, chestnuts, etc.) foods, etc. Children with asthma should try to avoid contact, inhalation or ingestion. For example, dryness and ventilation are the best ways to eliminate mites; it is best not to lay carpets indoors; asthmatic children should try to avoid holding and playing with stuffed toys; parents are advised to use wet rags for hygiene to avoid raising dust and reduce the chance of mites spreading in the air; prevent asthmatic children from passive smoking; do not keep pets and plant flowers indoors; try to avoid asthmatic children from coming into contact with household sprays, paints, etc.; and avoid abusing Antibiotics.