As we all know, during the Dragon Boat Festival, the temperature rises and the south basically enters summer. But there is a folk saying that "when the Dragon Boat Festival arrives, the five poisons will come out", that is, many poisonous animals come out for activities, such as poisonous snakes, centipedes, scorpions and, of course, some mosquitoes.
However, wormwood has a unique fragrance, which can play a role in repelling insects.
Hanging method
Different places have different opinions about when to hang wormwood. Most places hang it on the morning of the Dragon Boat Festival, some places hang it at noon on the day of the Dragon Boat Festival, and some places hang it on the night before the Dragon Boat Festival, that is, on the fourth day of the fifth lunar month.