Elderly people who lie down and cough should go to the hospital to further identify the cause and then give targeted treatment. Elderly people who lie down and cough need to consider whether they have bronchial asthma. Patients with bronchial asthma often have chest tightness at the same time, but there are a few bronchial asthma that only manifest as coughing, and if they have bronchial asthma, they need to be treated with inhaled medication, such as inhalation of budesonide formoterol powder inhaler. Gastroesophageal reflux may also be the cause of coughing in the elderly. In most cases, coughing caused by gastroesophageal reflux is more pronounced during the day, but there are a few cases of gastroesophageal reflux that are more pronounced in the lying position and at night. The cough may be treated with oral pantoprazole and domperidone. The coughing of elderly people when lying down also requires the exclusion of cardiac insufficiency, because elderly patients are prone to complications of cardiac insufficiency, and if it is cardiac insufficiency, it needs to be treated with diuretics and other drugs under the guidance of a cardiovascular physician.