Put the dried wormwood into a cloth bag and seal it with thread or needle and thread to ensure that the vanilla will not overflow from the cloth bag. Choose the shape and size you like to make sachets. Sun-dried wormwood is also put into homemade wormwood sachets, or used as a spice to add candles, essential oil stoves, etc. To burn or volatilize the fragrance of wormwood. This helps to purify the air, repel insects and mosquitoes, and improve the indoor atmosphere.