There are many reasons for coughing before going to bed and not coughing after going to bed, which may be caused by pharyngitis, bronchitis and other reasons. 1. Pharyngitis: Because the throat is stimulated by inflammatory factors, there will be dry itching, swelling and other symptoms, coughing before going to bed, after going to bed because the body’s metabolism is slowed down, the secretion of inflammatory factors will also be reduced, so you may not cough after going to bed. It can be treated with drugs such as cefuroxime and azithromycin. 2. Bronchitis: Inflammatory factors and the role of the nervous system so that the bronchial smooth muscle contraction, resulting in coughing before bedtime, after sleep, the local nerve in a dormant state, the amount of bronchial smooth muscle contraction will be reduced, and therefore fall asleep after not coughing. It can be treated with drugs such as albuterol and terbutaline. There are many reasons for coughing before going to bed and not coughing after going to bed, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease, and standardized treatment under the guidance of the doctor.