Acute bronchitis is associated with pathogenic microbial infections, physicochemical factors and allergic reactions. It should be disposed of by general treatment and drug treatment. 1. General treatment: patients should strengthen rest and keep warm, hydrate in time and avoid overwork. 2. Drug treatment: cough suppressants, phlegm removers, β2 agonists and antibiotics can be used to treat the symptoms. For example, dextromethorphan can effectively relieve the symptoms of cough; bromhexine can improve the symptoms of phlegm; salbutamol can improve the symptoms of bronchospasm; antibiotics such as penicillin, roxithromycin and other drugs can deal with bacterial infections. It should be noted that those who are allergic to the above drugs are prohibited. Due to the different conditions of patients, the exact treatment must follow the doctor’s advice.