My baby is 40 days old. He has phlegm in his cough. He coughs badly at night.

The baby is 40 days old, cough has sputum, cough at night is severe, need to take the baby to the hospital to do a blood routine examination, if it is caused by bacterial infection, can take cefaclor granules orally, at the same time cooperate with Xiaoer Zhike Huatan granules for treatment, to do a good job of warm measures.