How to treat bronchitis in infants?

Patient's question:

Detailed medical condition and consultation purpose: The child makes snoring sounds through the nose while feeding, and it seems like there is phlegm in their throat. Their breathing is normal while sleeping. When awake and at rest, their breathing is normal, but when playing, it seems like there is phlegm in their throat making snoring sounds.
Duration of the current illness: Since the child was discharged from the hospital, it has been more than 60 days.
Medical history: The child was hospitalized for 10 days due to bronchitis at 38 days old. Before admission, they did not have a runny nose, no snoring sounds, no coughing, and had normal body temperature. During the admission examination (X-ray), it may have been due to excessive covering, causing the child to sweat a lot, and the examination room was very cold. After the examination, the child

Doctor's answer:

Hello: Based on the situation you described, it still falls under the symptoms of tracheitis. Key treatment points
1. For infants with high fever and systemic toxic symptoms, regardless of whether white blood cell counts are elevated, blood culture should be sent for once, and sputum culture should be attempted.
2. Symptomatic and supportive therapy is the main approach. Increase air humidity and maintain fluid intake. Use intravenous infusion of maintenance fluids as appropriate.
3. Oxygenation is the primary measure. Oxygen flow rate: 1–3 L/min (nasal cannula method), >3–5 L/min (mask method). Monitor changes in respiratory and heart rate before and after oxygenation, and adjust the oxygen flow rate as needed.
4. Antibiotics
- For mild cases, antiviral oral liquid or virological injection of ribavirin should be used as a principle, or erythromycin derivatives can also be taken orally.
- For infants under 6 months and more severe cases, penicillin or erythromycin derivatives are the first choice. If fluid supplementation is needed, it can be administered via the intravenous route.
5. Corticosteroids
- For severe infants with severe dyspnea, hypoxia, and widespread dense pulmonary signs, short-term intravenous infusion of hydrocortisone or dexamethasone, or oral prednisone, can be used.