Hello Thank You for contacting HCM. His throat needs to be checked for throat infection. Most of the times children do cough because of chest or throat infection. For cough you can give him Diphenhydramine + Acefyllin Piperazine. If problem continues then i would recommend you to visit a pulmonologist for detailed checkup followed by lab investigations to rule out the cause and permanent treatment of baby. Hope this answers your question. If you have additional questions or follow up questions then please do not hesitate in writing to us. I will be happy to answer your questions. If you do not have any clarifications, you can close the discussion and rate the answer. Wishing him good health.