There is no evidence to suggest that eating a particular food over a long period of time is good for bronchiectasis. Treatment of bronchiectasis is infection control, improvement of airflow limitation, and surgery. 1. Infection control: Infection is the most common acute exacerbation trigger for bronchiectasis. Infection control should be treated with appropriate antibiotics according to the results of sputum culture and drug sensitization, such as the presence of Pseudomonas aeruginosa infection, the choice of β-lactam antibiotics with anti-pseudomonas activity (such as cefotadine, cefoperazone, etc.). 2. Improvement of airflow limitation: In patients who already have obstructive ventilatory dysfunction, long-acting bronchodilators can be used to improve airflow limitation and help clear secretions, such as long-acting β2 agonists (e.g., salbutamol), long-acting anticholinergics (e.g., tiotropium bromide), and inhaled glucocorticoids. 3. Surgery: Surgery can be considered for limited bronchiectasis to remove the diseased tissue. Patients with bronchiectasis have no special dietary requirements, a balanced diet can be daily, it is recommended that patients go to a regular hospital to follow the doctor’s instructions for proper treatment, the above drugs need to be standardized under the guidance of a professional physician and pharmacist, reasonable application.