Artemisia argyi can be hung at the door at night, but it has no practical effect. Generally speaking, it is better to plant wormwood before the Dragon Boat Festival for disease prevention and health care. So if you have children at home, you can give them some wormwood, or boil some eggs with wormwood, which can strengthen your body and dispel the cold.
I hope the above information can help you solve the problem. Please feel free to let me know if you have any other questions.