Acute bronchitis and bronchial asthma, although both are bronchial disorders, are not the same disease; acute bronchitis is not asthma. Acute bronchitis is an acute inflammation of the bronchial mucosa caused by various pathogenic factors, with common symptoms being fever, cough, and expectoration. Some patients may also experience chest tightness and wheezing. Treatment primarily involves antibiotics and cough suppressants with expectorants. Asthma, on the other hand, is characterized by chronic inflammation of the airways, high reactivity, and widespread variable reversible airflow limitation, with clinical manifestations mainly including recurrent episodes of wheezing, shortness of breath, chest tightness, or coughing. Treatment primarily involves bronchodilators such as theophylline, receptor agonists, and anti-inflammatory medications represented by corticosteroids, thus the treatments also differ.