Adults cough at night, not cough during the day, the main consideration for the following reasons: 1, the night to eat too greasy, spicy or ate salt content is relatively high in food, its will appear cough. 2, the night sleep may be cold, colds lead to pain in the throat, resulting in coughing. 3, the existence of reflux oesophagitis, just lying down due to changes in position, the stomach acid reflux into the throat to stimulate the pharynx and lead to Coughing frequently. For the above cases, it is recommended to eat a light dinner, drink more warm water before going to bed, and pay attention to increasing clothing at night, so as not to catch a cold or get cold. Patients with reflux esophagitis can elevate the head of the bed to sleep, and appropriate oral acid suppression and gastric protection or gastrointestinal dynamics of drugs to improve the symptoms.