Wormwood is bitter, pungent and warm, and enters the spleen, liver and kidney. According to Compendium of Materia Medica, Folium Artemisiae Argyi is used as medicine, which is warm in nature, bitter in taste, non-toxic, pure in yang, and can activate the twelve meridians, restore yang, regulate qi and blood, dispel dampness and dispel cold, stop bleeding and prevent miscarriage. It is also commonly used in acupuncture and moxibustion. Therefore, it is also called "herbal medicine". At present, the popular "herbal bath" in Taiwan Province Province mostly uses wormwood. Regarding the nature of mugwort leaves, the materia medica says: "mugwort leaves can moxibustion all diseases." "Herbal Medicine from the New" says: "Folium Artemisiae Argyi is bitter in taste, warm in nature, ripe and hot, and good at yang, which can restore yang loss, dredge the twelve meridians, take three yin, regulate qi and blood, dispel cold and remove dampness, warm uterus, ... moxibustion with fire can dredge meridians and eliminate all diseases." It shows that Folium Artemisiae Argyi, as a moxibustion material, has the functions of dredging channels and collaterals, dispelling yin and cold, reducing swelling and resolving hard mass, and restoring yang to save adverse events. Modern pharmacological research shows that there are many kinds of volatile oils in Folium Artemisiae Argyi, among which 1.8- cineole (accounting for more than 50%), and others are α-cochineal, sesquiterpene enol and their esters. The air-dried leaves contain 10. 13% minerals and 2.59% fat and protein.

25.85%, and vitamins A, B 1, B2, C, etc. Moxibustion with mugwort leaves is generally better as you get older, so there is a saying that "seven years of illness and three years of moxa" (Mencius).

Whole grass has the effects of regulating menstruation, stopping bleeding, preventing miscarriage, dispelling cold and removing dampness. Treat menoxenia, dysmenorrhea, abdominal pain, abortion and uterine bleeding.

Cure rheumatic arthritis, head wind, moon wind, etc. Because it can cut ice to make it round and cure all diseases, it is the most commonly used medicine for doctors. Modern experimental studies have proved that Artemisia argyi leaves have antibacterial and antiviral effects; Antiasthmatic, antitussive and expectorant effects; Hemostatic and anticoagulant effects; Sedative and antiallergic effects; Protect liver and gallbladder, etc. Wormwood can be used as recipes such as wormwood tea, wormwood soup and wormwood porridge to enhance the body's resistance to diseases. Wormwood has a special fragrance, which can repel mosquitoes and insects. Therefore, the ancients often hung wormwood in front of the door to ward off evil spirits and repel mosquitoes.