Azithromycin for pneumonia is usually given on a drip for a maximum of 3-5 days, when the patient is diagnosed with a bacterial infection, or pneumonia caused by mycoplasma infection, azithromycin can be chosen for anti-infective treatment. If the patient is diagnosed with pneumonia, it is necessary to complete the relevant examinations to determine what kind of pathogenic microorganisms caused by pneumonia, and the common pathogenic microorganisms include viruses, bacteria and atypical pathogens. When the patient is diagnosed with pneumonia caused by bacteria, antibiotics are needed for treatment, preferred cephalosporin, penicillin antibiotics, if the patient is allergic, azithromycin, levofloxacin and so on. If the patient’s pneumonia is caused by viral infection, anti-viral drugs, such as oseltamivir and abidol, can be used, and symptomatic treatment can be given at the same time. If the patient’s pneumonia is caused by atypical pathogens such as mycoplasma and chlamydia, macrolide erythromycin and azithromycin, or quinolone levofloxacin and moxifloxacin can be used.