1. Penicillin: it is a commonly used drug when chronic bronchitis is combined with infection, but it should be used under the guidance of a doctor and after a negative skin test.
2. Cotrimoxazole: Adults 1.O grams each time, twice a day, orally.
3. Madicillin: O.3 grams per time for adults, 3-4 times a day, orally.
4. Cefadroxil: adults 0.5 grams per time, 3-4 times a day, orally.
(2) expectorant and cough suppressant cough, phlegm, phlegm and sticky not easy to cough out, the following drugs can be used.
1. Potassium iodide: 0.3-0.6 grams, 3 times per mouth, oral.
2. Togan syrup: 2-3 ml, 3 times a day.
3. Bizoupine: 8-16 mg, 3 times a day.
4. Ultrasonic nebulized inhalation or steam inhalation.
(3) bronchodilators when chronic bronchitis combined with bronchospasm, wheezing, shortness of breath, can choose aminophylline 0.1 grams, 3 times a day oral.