If a fly flies into your nose, you can blow your nose and sneeze to drive the fly out. If you fail to drive the fly out, you should seek medical advice and use tools to remove the fly. 1. After a fly flies into the nose, you should use your hand to immediately hold down the nostril on the side where the fly did not enter, and then blow your nose vigorously, and generally due to the force of the impact, you will be able to blow the fly out. If the fly does not enter deeply, you can also sneeze out the fly by stimulating the nostril. 2. If the above two methods are unable to let the fly out, you should consult a doctor in time. You can use physiological seawater and bupivacaine to spray the nasal cavity to suffocate the fly, and then the doctor can use a tool such as gun tweezers to take out the fly according to the location of the fly in the nasal cavity. If the fly enters deeper, the fly can be sucked out by endonasal suction. It is recommended that patients seek medical treatment in time and actively cooperate with doctors to remove the fly from the nose in time to avoid infection.