Raw oyster is a kind of soft-bodied marine organism, among which the shells of long oyster, Dalian Bay oyster, and Konjang oyster can be used as medicinal herbs, and its medicinal name is oyster. Oyster is salty in taste and slightly cold in nature, and belongs to the liver, gallbladder and kidney meridians. It has the effects of softening and dispersing knots, submerging yang and tonifying yin, and tranquilizing the mind (stabilizing the mind with ores and shells), and is suitable for the treatment of palpitations and insomnia, scrofula (mainly refers to tuberculosis of lymph nodes of neck), phlegm and nucleus (the nodule swollen up like nucleus under the skin), and dizziness and tinnitus, and other diseases. It should be noted that patients with spleen and stomach deficiency (spleen and stomach weakness and cold) should not take the medicine for a long time or use a large amount of medicine, so as not to increase the burden on the spleen and stomach. In addition, it should not be used by people with constipation, or those with external symptoms (mainly manifested as respiratory symptoms after feeling external evils) or those whose symptoms have not been resolved. When oysters are used as medicinal herbs, it is recommended to use them under the guidance of a professional physician, and should not be taken on one’s own in order to avoid adverse consequences.