The duration of infusion for bronchitis is related to the severity of the patient’s condition and varies among individuals resulting in different times. Bronchitis is a common infectious disease of the respiratory tract, and patients mainly present with fever, cough, and coughing up white mucous or thin sputum. For mild bronchitis, the treatment period is about 1 week, and the infusion time is usually 3 days. For more severe bronchitis, combined with inflammation of the lungs or other underlying diseases, patients often require longer treatment cycles and the infusion time can be extended to 1-2 weeks. Especially in young children and in elderly people with low resistance, the disease progresses faster and treatment needs to be started early. Antiviral treatment is needed if the infection is viral, and antibiotic treatment is needed if the infection is bacterial. After bronchial cure is discharged from the hospital, patients should take rest, eat more protein-rich food and avoid spicy and stimulating food. Avoid going to crowded places as much as possible, and need a period of quiet recuperation.