Bronchitis is usually adequately treated with fluids for about 5-7 days, and if the medication is chosen appropriately and the patient is in good health, 1 week is sufficient for clinical cure of bronchitis. Because the symptoms of bronchitis are often relatively mild, it is recommended that oral medication be used as much as possible in the treatment. If there is no significant improvement in symptoms after 3 days of oral medication, then according to the clinical symptoms and related conditions, to determine whether the need for infusion therapy. According to the pathogenic bacteria to choose targeted sensitive drugs to control the infection, so as to achieve a better therapeutic effect. However, for the frail and sickly elderly and children with obvious clinical symptoms, infusion therapy can be chosen directly.