Step 2: Prepare to cut nose hair before operation, disinfect the back, face and nasal cavity, and fill dry cotton balls or gauze strips in the nostrils. At the same time, the surgical instruments are disinfected to ensure aseptic operation.
Step 3: According to the previously designed surgical plan, mark the position of incision and prosthesis, mark the midline from the tip of nose to the root of nose, and draw the position and peeling range of the starting point of the nose mold of solid silicone rhinoplasty prosthesis.
Step 4: Anesthesia: inject anesthetic into the nose for local anesthesia. Inject local analgesic into the periosteum surface attached to the nasal root from the tip of the nose, then withdraw the needle to the tip of the nose, turn the tip of the needle to the direction of the nasal columella, and inject local analgesic into the nasal columella until it reaches the anterior nasal spine.