Chronic bronchitis is short for chronic bronchitis, which does not necessarily occur every year, but may occur frequently if not well controlled. Patients with chronic bronchitis have lower respiratory resistance, and when climate change occurs, the difference in temperature is greater, making it easier for respiratory infections to occur as a result of catching a cold, and making it easier for acute episodes of chronic bronchitis to occur every year. However, if you can pay attention to keep warm and increase resistance, chronic bronchitis does not necessarily have an attack every year, and can remain stable for a long time. Patients with chronic bronchitis should pay attention to strengthening exercise in warm weather to increase resistance. When the weather is cold, pay attention to heat preservation and anti-freezing, and prevent the occurrence of respiratory infections, which can effectively reduce the number of respiratory infections and slow down the progress of the disease. Patients with chronic bronchitis should be treated under a doctor’s supervision to reduce the risk of recurrent infections.