This kind of cold water stone is the embryonic form of gypsum, which is mainly used for clearing away heat and purging fire, inducing resuscitation and reducing swelling, relieving boredom and quenching thirst, and for sexual heat. It is recommended that you use it under the guidance of a doctor. This stone has the functions of calming the nerves, tonifying the kidney and enriching the blood, calming the liver and relieving asthma, improving eyesight and hearing, and stopping bleeding from golden sores. This talc has diuretic, diuretic, repercussive and dehumidifying effects. It is recommended that you use it under the guidance of a doctor.