Oysters are used to calm the liver and subdue yang (suppressing too much yang rising in the liver), astringent and consolidating (astringing and consolidating), softening and dispersing knots (softening and dispersing hard lumps), and tranquilizing the mind (using a heavy sedative drug to settle the mind). Oyster belongs to traditional Chinese medicine and is the shell of the oyster, Ostrea edulis, of the family Ostreaceae. It has the effects of calming the liver and submerging the yang, astringing and fixing astringency, softening and dispersing knots, and tranquilizing the mind. It is used for treating panic, restlessness, insomnia and waking up easily caused by restlessness of the heart and mind; dizziness caused by hyperactivity of liver yang (excessive liver yang, causing dizziness, dizziness, headache and other symptoms); neck lumps and nodules and abdominal lumps and nodules caused by phlegm-dampness accumulation. In addition, oyster can also treat spermatorrhea and premature ejaculation in men, nocturia at night, frequent urination, heavy menstruation and leucorrhea in women, stomach acidity, stomach pain, bleeding from trauma, skin abscesses and sores, and eczema of the skin. It should be noted that oyster is a shellfish traditional Chinese medicine, which needs to be broken and then decocted for half an hour before adding other traditional Chinese medicines for decoction in order to increase the dissolution of the active ingredients of the drug. Note that this product is prohibited for those who are allergic to this product, allergic people should be cautious, people with constipation should not use. Oyster is a traditional Chinese medicine, you need to be guided by a traditional Chinese medicine practitioner to use the medicine, do not use the medicine arbitrarily, in order to avoid adverse consequences.