3-year-old child often cold cough what reason

3-year-old children often cold cough may be children do not maintain regular eating habits, picky food, partial eclipse caused by malnutrition, so that the body resistance is reduced. This symptom may also be caused by bacteria, viruses, mycoplasma infection. Suggestions: families need to take the baby to the hospital for examination, according to the results of the examination to choose the appropriate anti-infective drug treatment.