The vast majority of coughs are caused by respiratory disease, so preventing respiratory disease is the key to preventing coughing. Coughing is a protective respiratory reflex action by the body to clear secretions or foreign bodies from the respiratory tract. Although it has its beneficial side, a violent and prolonged cough can lead to respiratory bleeding. Correctly distinguish between general cough and cough variant asthma to prevent misdiagnosis. What should I do to prevent chronic coughing and wheezing in winter and spring? 1. Quit smoking To reduce the irritation of the respiratory tract from smoking, patients must quit smoking. Other irritating gases, such as kitchen fumes, should also be avoided. 2.Promote sputum excretion For patients who are old and weak and unable to cough up sputum or patients with more sputum, expectoration should be the main focus, and cough suppressants should not be used, so as not to inhibit the central nervous system to aggravate the inflammation of the respiratory tract and lead to deterioration of the disease. Help critically ill patients change position regularly and gently massage the patient’s chest and back, which can promote sputum discharge. 3, maintain good home environmental health indoor air circulation fresh, with a certain humidity, control and eliminate all kinds of harmful gases and smoke and dust. Improve environmental hygiene, do a good job of dust control and air pollution prevention, strengthen personal protection, and avoid the influence of smoke, dust and irritating gas on the respiratory tract. 4.Appropriate physical exercise Enhance physical fitness, improve the resistance of the respiratory tract, prevent upper respiratory tract infection, avoid inhalation of harmful substances and allergens, can prevent or reduce the occurrence of this disease. Exercise should be gradual, gradually increase the amount of activity. 5, pay attention to climate change and cold season In the severe winter season or when the climate suddenly becomes cold, pay attention to the warm and cold clothes, add clothes in time, do not cause cold due to cold. The indoor temperature in the cold season in winter should be 18-20 ℃.