Cinnabar has a calming effect on the mind. Cinnabar is a mineral Chinese medicine, sweet in flavor, slightly cold in nature; poisonous. It belongs to the heart meridian. It can clear the heart and calm the mind, tranquilize the spirit, brighten the eyes and detoxify the toxin. It can be used for palpitation, insomnia, epilepsy, pediatric convulsions, vision loss, mouth sores, laryngeal paralysis (redness, swelling and pain in the pharynx, dryness, foreign body sensation, itchy pharynx, difficulty in swallowing), etc. It is also used in the treatment of heart disease, heart attack and convulsion. Cinnabar with amber for heart-liver treatment, tranquilizing and sedative effect is stronger. It is suitable for disturbed mind and spirit, insomnia and dreaming, or restless sleep, chaotic dreaming, etc. Cinnabar with magnetite can strengthen the effect of tranquilizing the mind (using minerals, shellfish to stabilize the mind), so that the heart fire does not disturb, the essence of the above, and there is a certain degree of communication between the heart and the kidney (the heart fire down, the kidneys rise, mutual restraint). Applicable to the heart and kidney do not communicate (heart fire, kidney yin deficiency, heart and kidney physiological dysfunction), heart and liver fire caused by restlessness, palpitations and insomnia, tinnitus and deafness. Cinnabar is cold in nature, and should not be used by those with cold spleen and stomach, as well as those without evidence of heat. Cinnabar is poisonous, and the elderly and children should especially avoid taking it in large quantities for long periods of time; it is contraindicated in pregnant women. It is recommended to use the medicine under the guidance of a doctor.