Coughing in the morning can be seen in chronic bronchitis, chronic obstructive pulmonary disease, bronchial asthma, reflux esophagitis and other diseases. 1. Chronic bronchitis, chronic obstructive pulmonary disease: morning cough is a symptom caused by chronic airway inflammation. Because the phlegm produced by the airway can not be eliminated during sleep at night and lead to stagnation, phlegm will stimulate the respiratory tract in the early morning and produce coughing, the patient often coughs with a large amount of phlegm, the main treatment is to use cough and phlegm such as aminoglutethimide and other drugs, and anti-infective treatment if necessary. 2. Allergic airway inflammation: for example, bronchial asthma, vagus nerve excitability increases at night during sleep, contraction of bronchial smooth muscle, will cough at night or in the morning. The main treatment is inhaled low-dose glucocorticoids plus beta agonists such as budesonide formoterol powder inhaler. 3. Reflux esophagitis: also known as gastroesophageal reflux disease (GERD), can cause morning cough, which may be related to the reflux of food at night. The main treatment is antigastric acid therapy, such as omeprazole. Coughing in the morning may also be caused by other diseases, such as coughing in the morning symptoms do not improve or aggravate, need to consult a doctor in a timely manner, a clear diagnosis, active treatment.