8-year-old child does not cough during the day how is cough at night to return a responsibility

8-year-old children do not cough during the day, cough at night, usually because the child's upper respiratory infection or respiratory tract disease caused, more common in bronchial asthma, pneumonia and other diseases; there may also be a baby suffering from food accumulation caused, generally with eating too much fatty food, usually bad living habits.