What is the reason why the child always coughs?

Patient's question:

No

Doctor's answer:

At any time, if a child coughs for more than a certain period, parents should take it seriously. There are many possible reasons for persistent coughing in children, including respiratory infections, lingering cough after a viral infection, bronchial asthma, and so on. I suggest you describe your situation in more detail. After I understand your detailed situation, I can provide you with better guidance.