Chinese medicine believes that Folium Artemisiae Argyi is warm and fragrant, good at dredging the twelve meridians, and has the functions of regulating qi and blood, dispelling cold and dampness, warming meridians, stopping bleeding and preventing miscarriage. Compendium of Materia Medica: "Folium Artemisiae Argyi is slightly bitter at birth, slightly bitter at maturity, warm and ripe at birth, pure yang. You can take away the true fire of the sun, and you can go back to Yuanyang ... Moxibustion can cure all diseases and evils through various meridians, and Kangtai is the most severe disease, and its merits are also great. " "Herbal Zheng Zheng" also thinks that "Folium Artemisiae Argyi can activate the twelve meridians, especially the drugs of liver, spleen and kidney, warm the middle warmer, dispel cold, remove dampness, promote qi and blood circulation, regulate qi and relieve depression ... or use raw juice, cooked decoction, moxibustion for all diseases, or fry and iron to activate collaterals, or hold a bag to warm the umbilicus and knees". It shows that the therapeutic effect of Artemisia argyi is very extensive. Although Folium Artemisiae Argyi was burned in the process of moxibustion treatment, its medicinal properties are particularly lasting. Its medicinal properties can enter the body through acupoints on the body surface, penetrate into meridians and play a therapeutic role. It can also enter the body through breathing, playing the role of strengthening the body resistance, eliminating evil spirits, dredging meridians, refreshing the brain and calming the nerves; It can also directly kill exogenous pathogens located on the body surface, thus playing a role in treating skin lesions and preventing diseases.