A 4-year-old child has been suffering from a persistent cough, with dry cough upon waking in the morning, accompanied by nausea and worsening cough at night. The cough intensifies after consuming sweet foods, and the child also has phlegm and thick nasal discharge. They have visited a workers’ hospital, where the doctor suspects bronchitis and recommends further examinations and treatments, including chest X-rays, CT scans, bronchoscopy, and bronchial provocation tests. The doctor has also prescribed amoxicillin potassium clavulanate, cough syrup, licorice tablets, ketotifen, and traditional Chinese medicine for cough relief. It is advised to avoid spicy and cold irritant foods in daily life and to enhance physical fitness through exercise. If diagnosed with a respiratory system issue, parents should cooperate with the doctor for active treatment and pay attention to their child’s balanced diet.