4-year-old children always cough at night is how to return a responsibility

Four-year-old children always cough at night, which may be caused by detoxification at night, which is a normal phenomenon; but it may also be caused by bronchitis, bronchiectasis and bronchial asthma. In this case, the baby should be taken to the hospital for examination in time, and the baby should take cough food or medicine appropriately.