If you have acute bronchitis, which is caused by a bacterial infection, you need antibacterial and anti-inflammatory treatment with antibiotics for 5-7 days. This time also tends to cause symptoms of fever, cough and coughing phlegm, which also need to be treated symptomatically with drugs to stop coughing and remove phlegm and heat and fire. Acute bronchitis may also be caused by viruses, other pathogenic microbial infections, if it is caused by viral infections. If it is caused by viral infection, oral antibiotics have no therapeutic effect and antiviral medication is needed, which also takes about 5-7 days. If it is due to chronic bronchitis with symptoms caused by bacterial infection, or if the symptoms of acute bronchitis are more serious, you need to extend the time of oral antibiotics in moderation, it is best to go to the hospital for examination first and take them orally correctly under the guidance of a professional physician.