Is the mosquito repellent aromatherapy bag useful?

There is a folk saying that "wearing a vanilla bag is not afraid of five bugs." General mosquito repellent sachets often contain Chinese herbal medicines such as Acorus gramineus, Radix Angelicae Dahuricae, Rhizoma Atractylodis, Gan Song, and Herba Agastaches, which belong to aromatic drugs and contain volatile oil. In the natural environment, they can emit a smell that mosquitoes don't like, so they can achieve the effect of repelling mosquitoes.