What do you mean mugwort leaves and calamus are hanging at the door?

Hanging mugwort leaves and calamus at the door is the custom of Dragon Boat Festival, mainly to ward off evil spirits. On the Dragon Boat Festival, every household uses calamus, mugwort leaves, pomegranate flowers, garlic and dragon boat flowers to make human figures, which are called "lovers" and "Ai Hu". They make garlands and decorations, which are beautiful and fragrant, and women compete to wear them to drive away evil.

It can be seen from the functions of Folium Artemisiae Argyi and Rhizoma Acori Graminei that the ancients inserted Folium Artemisiae Argyi and Rhizoma Acori Graminei to prevent diseases. Dragon Boat Festival is also a "health festival" handed down from ancient times. On this day, people sweep the courtyard, hang mugwort leaves, hang calamus, sprinkle realgar wine, drink realgar wine, stir up turbidity, remove rot, sterilize and prevent diseases.