Rhinorrhea is a common condition, the main causes of which are too dry air, too low humidity, bad habits such as frequent nose picking, long-term excessive smoking and drinking, eating a spicy diet, mucous membrane erosion in the anterior part of the nasal septum, nasal septal perforation, deviated nasal septum, etc. Treatment methods are as follows: When bleeding, you can pinch the bilateral nasal wings with your index finger and thumb for a few minutes to compress and stop the bleeding, which can be repeated several times until the bleeding stops. If there is still bleeding, the nasal cavity can be filled with cotton balls to stop the bleeding. If the bleeding is heavy and rapid and cannot be stopped by yourself, you should go to the hospital promptly. This condition should be given high priority and can lead to serious problems such as hemorrhagic shock. If accompanied by hypertension and other diseases, blood pressure should be lowered promptly for treatment.