Oyster has the effects of tranquilizing the mind, subduing yang and tonifying yin, and softening hardness and dispersing knots. Oyster has the effects of calming the liver yang, astringent, tranquilizing the mind (using ores and shellfish to stabilize the mind), and softening and dispersing knots. It is mainly related to its flavor and attribution. Salty flavor can soften the knot, astringent flavor can astringent. Its heavy texture can calm the mind, calm the liver and subdue yang (suppressing too much rising yang qi in the liver). It can be used to treat palpitations and insomnia caused by restlessness of the heart and mind; it is also effective in treating dizziness caused by hyperactivity of liver yang (excessive liver yang, causing dizziness, dizziness, headache, etc.); it is also effective in treating obstruction in the abdomen (visible or invisible lumps in the abdomen, with distension and pain), gall tumors (equivalent to tumors of the thyroid gland), and scrofula (mainly refers to tuberculosis of cervical lymph nodes), etc. It has been used in the treatment of insomnia, which is caused by palpitation. Specific use needs to be paired with other drugs, subject to the identification of professional Chinese medicine practitioners, and should not be used on its own to avoid adverse reactions.