Cephalosporin and azithromycin differ in three main ways: the type of drug, the causative agent treated, and the method of use. 1. Different types of drugs: Cephalosporin belongs to the cephalosporin class of antimicrobial drugs, azithromycin belongs to the macrolide class of drugs. 2. The treatment of pathogenic bacteria is different: Cephalosporin is more effective in treating pneumonia, respiratory tract infections, skin infections, urinary tract infections and other diseases caused by gram-negative bacteria and sensitive bacteria, while azithromycin is more effective in treating vaginal inflammation and urinary tract infections caused by mycoplasma and chlamydia. 3. Usage: the course of cephalosporin is generally controlled within two weeks, while azithromycin is within one week. Cephalosporin and azithromycin both belong to the antibiotic class of drugs, the specific use of which should be taken under the guidance of the doctor in combination with the condition. When taking the drug for the first time, pay attention to whether it is allergic or not, so as to avoid a life-threatening situation.