The arrival of the cold, snowy winter makes it difficult for asthma patients and their families to sleep and eat. Those days of chest tightness and breathlessness can be like years. Most areas of China have cold, dry winters with a large temperature difference between indoors and outdoors. When asthma patients come from the warm indoor to the cold outdoor, or the indoor temperature is low, there will be reflexive airway spasm contraction, triggering airflow exhalation restriction, leading to chest tightness in patients with poor lung function; and patients with poorly controlled asthma inflammation can induce acute asthma attacks, leading to extensive small airway spasm and severe breathing difficulties, requiring emergency treatment. Due to the dry winter climate and weak defense of mucous membranes themselves, coupled with closed doors and windows in most homes and dirty indoor air, the epidemic of upper respiratory tract infections due to viruses and bacteria is prone to occur, and viral and bacterial infections are the most common triggers of acute attacks in asthma patients. The application of heating equipment such as air conditioners breeds dust mites, leading to an increase in allergens in patients with endogenous asthma. The use of coal and wood, etc. for heating, which can easily lead to ambient air pollution, is also a factor that can easily aggravate asthma patients. Asthma is a chronic respiratory inflammatory condition that is usually classified as endogenous asthma (associated with factors such as infection) and exogenous asthma (associated with allergic factors) according to the cause of its onset. However, the current classification is mostly based on the degree of control of asthma treatment, which is classified as controlled, well-controlled and uncontrolled. Usually the chance of endogenous asthma onset may be slightly higher in winter and exogenous asthma is less frequent due to the relatively low concentration of plant pollen, but it cannot be completely excluded. Patients with uncontrolled clinical symptoms are very susceptible to the onset of the disease in winter, as indicated by the degree of therapeutic control. Cold, infections (viral or bacterial), allergies, and environmental smoke irritation are some of the factors that exacerbate asthma in winter. But there is another key factor, which is the lack of regular treatment and poor control of airway inflammation in asthma, leading to recurrent attacks of chest tightness and cough. In the face of these various factors, asthma patients and their families need to actively prevent them and use all their “tricks” to deal with them. Patients with asthma should target to control the factors that trigger their asthma aggravation, pay attention to cold and warmth, add clothes in time, prevent repeated respiratory infections, enhance physical fitness, take appropriate walks and breathing exercises (respiratory health exercises, etc.); pay attention to indoor ventilation, keep air circulation, reduce the concentration of irritating gases in the room; winter diet should be light and easy to digest, eat less and more meals, avoid spicy and cold stimulating food The most important thing is to go to the hospital for examination. The most important thing is to go to the hospital to check the inflammation control status of your asthma, and inhale the anti-inflammatory drugs regularly according to the doctor’s instructions. If the control is better, even if the above triggering or aggravating factors are present, the chances of chest tightness and acute attacks are less. Families of asthma patients should read asthma-related treatment guidelines, understand key elements such as asthma treatment control scores, and consult a respiratory specialist in a timely manner when an acute asthma attack with cough or dyspnea occurs more than twice a week, and inhale medications regularly in a timely manner to reduce acute severe asthma attacks. In addition, it is necessary to have some commonly used asthma treatment medications at home, such as vomoterol/budesonide or salmeterol/fludrocortisone, salbutamol aerosol inhaler, aminophylline, etc., and use them under the guidance of a physician. If an asthma attack occurs, you can inhale 1~2 sprays of these drugs, take aminophylline orally, drink some warm water, etc. If the symptoms cannot be relieved, you should go to the hospital promptly.