Bronchitis is an inflammation of the bronchial mucosa caused by pathogenic microorganism infections, smoking, air pollution, and other harmful substances' stimulation, allergies, etc. Clinically, it often presents symptoms such as cough, sputum production, and chest tightness. For treatment, medications that stop coughs, promote mucus clearance, and relieve asthma can be used. If there is a bacterial infection, sensitive antibiotics can be chosen for treatment. After treatment with these medications, bronchitis can be cured. However, if the causative factors of bronchitis mentioned before reoccur, bronchitis can recur. Therefore, bronchitis is not curable.