Asymptomatic during the day and frequent coughing at night may be related to pneumonia, cough variant asthma, gastroesophageal reflux disease, etc. Diet needs to be adjusted according to the corresponding disease. 1. Pneumonia: Pneumonia is a consumptive disease in the clinic, during the period of illness, there will generally be a loss of appetite, coughing, coughing and other symptoms, it is usually advisable to choose high-quality proteins, such as eggs, milk, but also can be eaten fresh vegetables, fruits and other supplemental vitamins and minerals. When cooking, pay attention to light, less oil. 2. Cough variant asthma: During the period of illness, airway sensitivity is high, allergic foods and spicy, irritating foods should be avoided to avoid aggravating cough symptoms. 3. Gastroesophageal reflux disease (GERD): this disease is closely related to dietary factors, in order to minimize frequent coughing triggered by reflux stimulation at night, try not to lie down immediately after a meal, and try not to eat three hours before going to sleep. Usually three meals should be regular, do not eat too much greasy, sweet and sour, spicy food. There are many other causes of asymptomatic daytime and frequent coughing at night, it is recommended to go to the hospital as soon as possible to identify the cause, take regular treatment under the guidance of the physician, and follow the doctor’s instructions to do a good job related to dietary care.