Traditional Culture Encyclopedia - Weather forecast - Excuse me, how to cough when it is cold and hot in winter?

Excuse me, how to cough when it is cold and hot in winter?

There may be chronic bronchitis in winter. Some patients have a history of acute respiratory infection before onset, such as acute bronchitis, influenza or pneumonia. In the cold season, especially in the morning, patients often cough and expectorate. Phlegm is white and sticky, so it is difficult to cough up. In acute respiratory infection, the symptoms will get worse quickly. The amount of sputum increases, the viscosity increases or it is yellow and purulent, and occasionally there is blood in the sputum. After the recurrent attack of chronic bronchitis, the reactivity of vagus nerve receptor in bronchial mucosa increases and parasympathetic nerve function is hyperactive, which can lead to allergic phenomenon and wheezing. With the development of the disease, coughing all the year round, expectoration intensified in winter and autumn. When the symptoms of asthmatic bronchitis worsen or secondary infection occurs, patients often have asthma-like attacks and cannot lie flat because of shortness of breath. Dyspnea is generally not obvious, but with the aggravation of emphysema, dyspnea gradually increases.