It is recommended to use recombinant bovine basic cell growth factor gel, also called Befixin, and another one called compound heparin sodium gel to repair the nasal mucosa, both of which are more effective. However, one thing is that they need to be kept in a cool place, avoid direct sunlight, and applied to the nasal cavity with a cotton swab 3 times a day. In addition to the medication, it is also necessary to avoid forceful nose blowing and nose digging to reduce the damage to the mucosa of the nasal cavity. If the nasal cavity is dry, you can use physiological sea saline to keep the nasal cavity moist and clean. At the same time, avoid smoking and drinking alcohol, eat a light diet, eat more vegetables and fruits to replenish vitamins, and eat less spicy and stimulating food.