Bronchitis is mainly divided into chronic bronchitis and acute bronchitis, acute bronchitis can exist coughing, coughing sputum, and can be accompanied by fever symptoms, bacterial infection or viral infection can cause this situation, the specific infusion effect time is as follows: 1, bacterial infection after the infusion takes about 5-7 days to be effective; 2, viral infection routine infusion is not effective, mainly through the improvement of their own immunity, most of the 7-10 days can be improved on their own; 3, chronic bronchitis is mostly caused by bacterial infection problems, often there is wheezing, coughing white foamy sputum or pus. Most of them can improve on their own in 7-10 days by improving their own immunity; 3. Chronic bronchitis is mostly caused by bacterial infections, and often there is wheezing, coughing white foamy sputum or pus sputum, which can recover in about 3-5 days after treatment by infusion. Patients should be careful not to get cold during treatment, and should increase their rest time to improve their immunity.