Pneumonia is mainly caused by infection, and anti-infective drugs, such as ceftriaxone and azithromycin, are usually used; in addition, symptomatic drugs, such as the expectorant drug ambroxol, are also needed. The etiology of bronchitis has infectious factors as well as physical and chemical stimuli. Infectious factors can use levofloxacin, physical and chemical factors of medication can be symptomatic use of compound licorice combination, etc.. 1. Pneumonia: according to the different pathogens of infection, the drugs used are also different. Bacterial pneumonia can use cephalosporins, such as ceftriaxone; Mycoplasma pneumoniae infection can use azithromycin; viral pneumonia can use antiviral drugs such as ribavirin. 2. bronchitis: infection caused by factors can be empirically selected antibiotics, it is best to improve the culture of the causative organisms after the examination of the causative organisms according to the type of selection of anti-infective drugs, generally empirical treatment with levofloxacin. Some bronchitis is caused by the stimulation of physical and chemical factors, this kind of does not need to use antibiotics. First of all, we need to get rid of the physical and chemical stimuli, and then we can use the compound licorice syrup symptomatically. If the cough and sputum are strong, you can also use cough-suppressing and expectorant drugs such as Ambroxol and Glycyrrhiza glabra. The causes of pneumonia and bronchitis are many, it is recommended to go to the regular hospital, complete the relevant examination, clarify the cause of the disease, standardized treatment. The above mentioned drugs, need to be used under the guidance of a specialist, not self-medication, in order to avoid adverse reactions, endangering health.