When children of this age suddenly experience symptoms of nosebleeds, press on both sides of the nose. Because the good part of the nosebleed is located in the front and bottom of the nasal septum, the way of pressing can play the role of pressure to stop bleeding. At the same time to do low head and open the mouth, if part of the blood from the nasopharynx into the mouth, must try to cough out, to avoid nausea, vomiting, leading to the aggravation of the symptoms of nosebleed. Cold compresses on the forehead and the back of the neck can also be helpful in relieving the symptoms of nosebleeds. If there is no obvious hematologic disease, most of them will recover significantly after 5-10 minutes, and at the same time, it is necessary to combine with nasal endoscopy to observe the whole nasal cavity from front to back. If there is an obvious bleeding site, electrocoagulation can be used to stop the bleeding under general anesthesia. If there is no obvious bleeding site, you can use saline to rinse the nasal cavity, clean up the inflammatory secretions and allergens in the nasal cavity, and promote the recovery of its function. Usually pay attention to dietary regulation, do not picky eating, resulting in incomplete nutritional intake, you can eat more fresh vegetables, fruits, because rich in a variety of vitamins, is conducive to the recovery of nasal bleeding symptoms.