#AskTheExpert my baby is 2 month old and he coughs.. is it normal??

A. hi dear What causes cough in babies. Coughing is the result of your baby's airway being irritated or otherwise affected in some way. It may be caused by excess mucus buildup related to a viral illness or environmental irritants like pollen or smoke. You can look at your child's other symptoms to help narrow down the cause.