Bronchitis can drink more water, which is conducive to the dilution of sputum and can promote the discharge of sputum. Antibiotic drugs can be used to control intrapulmonary infections, commonly used antibiotic drugs include penicillins, cephalosporins, macrolides and quinolones, but quinolones are not suitable for adolescents under 18 years of age. If the effect of oral drug treatment is not good, it can be changed to intravenous injection, if necessary, sputum culture and drug sensitivity test can be carried out, choose the most sensitive antibiotic drugs for symptomatic treatment, or even a combination of drugs, and glucocorticosteroids can be used to reduce inflammation if necessary. Can be combined with expectorant drugs, Ambroterol oral solution can relieve smooth muscle spasm, has the effect of diluting sputum, can promote the discharge of sputum, and antibiotics can increase the anti-inflammatory effect of antibiotics when taken at the same time. Oral proprietary Chinese medicines can be taken, such as syrup of acute branch, honey-refined loquat paste, strong loquat lozenges and other drugs to clear heat and resolve phlegm.