If the patient does not cough at night but coughs during the day, it is usually considered that the disease is caused by infection of the respiratory system. After the patient’s throat, bronchus and trachea are infected by pathogens, it may lead to congestion and edema of the mucous membranes in the above mentioned areas, and even the exudation of inflammatory secretions. The expulsion of such inflammatory secretions may lead to coughing. During the daytime, the patient may be too nervous and not rested enough, resulting in the cough. However, when the patient sleeps at night, the whole body is in a relaxed state, and the smooth muscles of the airways are also in a relaxed state, so the patient will not cough while sleeping, but will cough during the day. Sleeping without coughing and coughing during the day may also be seen in a variety of other conditions, if the symptoms fail to improve or even gradually aggravate, we need to consult a regular hospital in a timely manner, and cooperate with the doctor to improve the examination and standardized treatment.