There is no clinical solution for coughing while lying down. Coughing while lying down can be caused by bronchitis, heart failure, gastroesophageal reflux, cough variant asthma, etc., and requires targeted treatment according to the specific cause. Bronchitis: If it is caused by acute bronchitis, you can use dextromethorphan tablets, phenylpropylpiperine phosphate tablets, pentoxyverine tablets and other drugs; if it is caused by chronic bronchitis, you can use compound licorice combination, compound methoxonamine capsules and other drugs for treatment. Heart failure: if the heart ejection function is impaired leading to pulmonary circulation stagnation, causing pulmonary edema caused by cough. It can be treated with drugs such as furosemide tablets and spironolactone tablets. 3. Gastroesophageal reflux: If the cough is caused by gastroesophageal reflux, it can be treated with oral medicines such as esomeprazole magnesium enteric-coated tablets and domperidone tablets, as well as surgical methods such as laparoscopic fundoplication. 4. Cough variant asthma: If the symptoms are caused by cough variant asthma, you can use drugs such as budesonide powder inhaler, or oral montelukast and other drugs for treatment. There are many other reasons for lying down and coughing, if the symptoms continue not to improve or aggravate, it is recommended to go to the hospital in time for examination and diagnosis, as soon as possible for targeted treatment.