Cinnabar, poisonous, has the effect of clearing the heart and calming the mind, tranquilizing the mind and detoxifying the toxin, and is mainly used in the treatment of palpitations (rapid heartbeat, often accompanied by panic), easy to be frightened, and insomnia and excessive dreaming. Cinnabar is sweet in flavor and slightly cold in nature; it belongs to the heart meridian. Clinically, Cinnabar is mainly used in the treatment of palpitation, insomnia, epilepsy, pediatric convulsions, vision loss, mouth sores, laryngeal paralysis, sore throat, or dryness, foreign body sensation, itching and discomfort in the throat, difficulty in swallowing, and sores and poisons. Cinnabar is contraindicated in pregnant women. Cinnabar is toxic, liver and kidney dysfunction can easily cause toxic substances to accumulate in the body, patients with liver disease and kidney disease should avoid taking large amounts of a single medicine. If patients have any discomfort, please go to regular medical institutions; if you need to use Cinnabar, you must use the medicine under the guidance of a professional doctor.