A five-year-old child has yellow phlegm cough, what is the reason?

Patient's question:

No

Doctor's answer:

It could be a respiratory infectious lesion. Oral cough and phlegm-relieving medications, such as glycyrrhiza compound and ambroxol, can be considered. If there is an infection, oral erythromycin and other antibiotics, as well as oral tracheal dilation drugs, can be taken.