How to treat 3-year-old pneumonia and cough better

Patient's question:

Patient Age: 3 and a half years old
Detailed Condition and Purpose of Consultation: My son has a cough but no fever. The cough is more common at night. A chest X-ray shows shadows. The doctor said it's pneumonia. But after taking a lot of medicine, it hasn't improved. I want to ask if there are any good treatment methods! Is it serious?
Duration and Onset of the Current Illness: Over 1 month
Current General Condition: Good mental state.
Medical History: Weak constitution since childhood.
Previous Diagnoses and Treatment History and Effects: Used to get IV drips for colds.

Doctor's answer:

Hello, bronchopneumonia is a major and common disease in children, especially prevalent in infants and young children. Bronchopneumonia is caused by bacteria or viruses. Provide sufficient vitamins and protein, drink plenty of water, and eat small meals frequently to keep the respiratory tract open. There are many factors that can affect children's respiratory system. If a child is diagnosed with a respiratory system issue, parents need to cooperate with the doctor for timely treatment, cooperate with gastrointestinal decompression, and develop good hygiene habits. The child needs a balanced diet and should avoid stimulating and cold foods.