Injuries to the nostrils during laryngoscopy cannot be completely avoided. If there is pain or a small amount of bleeding, you can observe and avoid digging the nostrils with your hands; if the bleeding is heavy or persists unrelieved, it is recommended to consult a doctor in time. Doing laryngoscopy through the nasal cavity, due to the narrower nasal cavity, touching the mucosa of the nasal cavity injury bleeding generally 2-3 days mucosa will be basically healed, you can use the following methods. 1. Do not pick your nose with your hands, which may lead to bleeding again if the scabs fall off. 2. Long time no recovery can use compound peppermint oil nose drops, or timely to the hospital for consultation. All of the above drugs should be treated under the guidance of a doctor.