Vancomycin is used to prevent infection after surgery, usually a course of treatment 7~14 days, the specific treatment time, need to be determined by the condition. Vancomycin is a kind of advanced antibiotic, which is used only when other antibiotics fail to achieve the desired therapeutic effect; vancomycin should not be used in large quantities, otherwise it will easily lead to damage to the kidneys and the auditory nerve, and it is generally recommended to be treated by intravenous drip for a course of 7 to 14 days, and the specific course of treatment is recommended to be determined by the specialist according to the needs of the disease. Vancomycin has a strong bactericidal effect on Gram-positive bacteria and is mainly used for serious infections induced by pneumococcus and methicillin-resistant Staphylococcus aureus. Common side effects include shock, allergy, acute renal insufficiency, and interstitial nephritis, and is contraindicated in people who are allergic to vancomycin. In addition, the use of vancomycin carries a high degree of risk, and patients must be supervised by a specialist.