“Although treatment can effectively improve the condition of chronic obstructive pulmonary disease (COPD), it is not a complete cure, so prevention is the key. How to prevent the recurrence or aggravation of COPD in the summer season? Quit smoking and avoid inhaling harmful particles in the air Smoking, including second-hand smoke, is the most important factor affecting the development and progression of chronic obstructive pulmonary disease (COPD), so patients with chronic obstructive pulmonary disease (COPD) must resolutely quit smoking. On the other hand, when there are more hazy days, the harmful particles in the haze, especially PM2 and 5, are more harmful to the respiratory tract, so it is better not to go out in hazy weather or poor air quality. Second, actively prevent colds and other upper respiratory tract diseases Colds and other upper respiratory tract diseases can easily induce acute exacerbation of chronic obstructive pulmonary disease (COPD), so we need to actively prevent all kinds of upper respiratory tract diseases. First of all, we need to pay attention to hand hygiene, usually wash your hands diligently, avoid touching the nasal cavity and lips without washing your hands; secondly, exercise moderately, but avoid getting up in the morning to go out to exercise; pay attention to indoor ventilation, open the window to ventilate the room in the morning, the time should not be too long; and finally, maintain a certain degree of indoor humidity, such as air-conditioned rooms can be used to humidify the humidifier. Once suffered from colds and other upper respiratory tract diseases need timely medical treatment, to avoid triggering the acute exacerbation of “chronic obstructive pulmonary disease”. Third, pay attention to dietary care “chronic obstructive pulmonary” patients should be appropriate to increase the high protein diet, strengthen the body. At the same time, they should often eat seasonal fresh vegetables and fruits to supplement vitamin C. At the same time, they should eat more food with high content of vitamin A, which is beneficial to the repair of respiratory mucosa. In terms of dietary taboos, it is not recommended to eat cold food, fried and seafood. Fourth, drug prevention, “chronic obstructive pulmonary” patients, especially patients with poor lung function classification need long-term maintenance treatment, these inhaled drugs, including bronchodilators and inhaled hormones, can play an anti-inflammatory effect of asthma, can not be stopped in the summer, the need to standardize inhalation therapy to prevent recurrence or exacerbation of the disease. On the other hand, the patient can be vaccinated with influenza vaccine or pneumonia vaccine to prevent the occurrence and exacerbation of chronic obstructive pulmonary disease (COPD) caused by respiratory tract infections. Finally, according to the patient’s physical type, Chinese medicine can be used to prevent the disease from occurring.