When the lung fire is relatively strong, some people will have symptoms of nosebleeds, mainly manifesting as excessive heat in the lungs, which can lead to chest tightness, chest pain, coughing, coughing yellow pus phlegm or green phlegm, sneezing, yellow pus nasal mucus or green nasal mucus, dryness and heat in the body and even irritability, and a tendency of continuous temperature increase. At this time, the capillaries on the lung wall will be congested and edematous until they spread to the mucosa of the nasal cavity, which will also be congested and edematous to varying degrees, and in severe cases, it will lead to the rupture of the blood vessels in the mucosa of the nasal cavity and bleeding, so the symptoms of nosebleed will occur. Clinically, it is usually necessary to remove the lung heat from the body, and the main treatment principle is to clear heat and detoxify the toxin.