How to treat bronchitis in children?

Patient's question:

Medical Description: Cough
Treatment History and Effect: I received intravenous drips for more than ten days in our county hospital, but there was no improvement. The medications included penicillin, cefalexin, and Xixin Brain. Later, several changes in medication also failed to yield results. Yesterday, I had a check-up at Qilu Hospital, where the blood tests showed slightly elevated levels, and the myocardial enzymes were also high. It was not a mycoplasma infection. The chest X-ray results (symmetrical chest cage, central mediastinum and trachea, increased texture, no abnormalities in the heart and diaphragm) were normal. The globulin levels were also normal. The doctors at Qilu Hospital prescribed some medications for me, including Sisuprem, Aphanizole, and E.
Help Needed: Doctor, how should I treat my child now?

Doctor's answer:

Chronic bronchitis in children is not caused by a single factor but may be associated with various factors such as low immune function, bronchial foreign bodies, congenital bronchial and pulmonary developmental abnormalities. Therefore, once a child is suspected of having chronic bronchitis, it is essential to consider the common factors mentioned above, combined with immune function tests and chest X-ray examinations, to identify the underlying cause. It is crucial to avoid diagnosing the condition as chronic bronchitis in a general manner and blindly using antibiotics for treatment.
Through chest X-ray examinations of children, and even bronchoscopy, once chronic bronchitis and its cause are confirmed, it is necessary to actively remove the underlying cause and combine measures such as anti-infection and symptomatic treatment. The majority of children can be cured with these approaches, and the prognosis is generally favorable.