Dragon Boat Festival is healthy, and every family has wormwood incense. Why do families keep wormwood during the Dragon Boat Festival?

Folk proverb says? Qingming inserted willow, Dragon Boat Festival inserted ai? . On the Dragon Boat Festival, people regard inserting wormwood and calamus as one of the important contents. Every family has wine to sweep the court, and the door eyebrows are inserted with calamus and moxa sticks. Acorus calamus, Folium Artemisiae Argyi, Liu Hua, garlic and dragon boat flower are used to make entertainment or tiger shapes, which are called Ai Ren and Ai Hu. It is made into garlands and decorations, beautiful and fragrant, and women compete to wear it to ward off evil spirits.