Moxibustion has the function of dispersing wind and cold and dispersing diseases, and Lung Yu is the back point of the lung, which is mainly used to prevent cough, asthma, coughing up blood and other lung diseases, as well as Yin deficiency such as hot flashes and night sweats. When you have a cough or suffer from wind or cold, you can moxibustion the lung points to promote the lung and stop coughing and strengthen the body. As the lung is the master of the skin and hair, moxibustion of lung acupuncture points can reduce and prevent colds and flu, so lung acupuncture points are very effective.