If you have a nosebleed, you need to take urgent measures to stop the bleeding, go to the hospital to find out the cause and treat the cause. This symptom can try to control the superficial bleeding in the front of the nasal cavity by pressing on the nose of the bleeding side, or use sterilized cotton balls to fill the nostrils of the bleeding side to assist pressure to achieve the effect of pressure to stop the bleeding; and use cold water to apply ice packs on the forehead and the back of the neck, which can help to stop the bleeding. If the bleeding does not stop, you should go to the hospital for medical intervention by a doctor. Common causative factors include: dry rhinitis, atrophic rhinitis, and nasal capillary hemangioma. Dry rhinitis can take intranasal medications such as compound peppermint oil nasal drops and cod liver oil to lubricate the mucous membrane. Atrophic rhinitis can be treated with vitamins or topical hexestrol. Nasal capillary hemangioma should take surgical treatment. In summary, nosebleeds should first be tried to stop bleeding, but whether or not it can be stopped should actively seek medical attention to identify the cause, standardize the use of drugs and diagnosis and treatment.