Post-operative maintenance of deviated septum mainly includes the following aspects: 1. Blowing nose or hitting nose with violence is strictly prohibited; 2. Prohibit strenuous exercise: patients should avoid strenuous exercise within 2 weeks after surgery, otherwise it will cause nasal septal hematoma, which can lead to the need for another surgery to remove nasal septal hematoma; 3. When patients wash their face, a simple cleaning is sufficient to be able to lightly wipe the bridge of the nose and around the nose, and avoid pressing the nose with a towel, otherwise the nose may collapse.