What is fortune-telling cinnabar used for?

The fortune teller said I had something dirty on me.

Cinnabar is poisonous and inedible. However, from the perspective of traditional Chinese medicine and geomantic omen in China, cinnabar and ginseng sand can soothe the nerves, invigorate qi and ward off evil spirits. They can be wrapped in a small cloth bag for personal care. As for the chest, it can also be pressed under the pillow that sleeps every night. Superstition, if you believe, there will be, if you don't believe, there will be. This method is harmless to the body and reassuring.