The common oyster tablet on the market is Hong Yang Shen Brand Chitosan Oyster Tablet, which is a kind of health care product and does not have the efficacy and effect of drugs, and the side effects are not yet clear. The Chinese medicine oyster has the efficacy of softening and dispersing knots (softening and dispersing hard lumps), submerging yang and tonifying yin, etc. The side effects are not clear. Hong Yang Shen Brand Chitosan Oyster Tablet has the health care function of enhancing immunity and is suitable for people with low immunity, not suitable for children and teenagers, pregnant women and lactating mothers. It is not suitable for children and adolescents, pregnant women, breastfeeding. Health products can not replace drugs to treat diseases. Oyster is salty in taste, slightly cold in nature, and enters the kidney, liver and gallbladder meridians. It has the efficacy of softening and dispersing lumps and knots, submerging yang and replenishing yin, and tranquilizing the mind (stabilizing the mind with ores and shellfish), and is usually used for treating symptoms of zheng zheng (lumps in women’s lower abdomen), plaque (lumps), scrofula and phlegm nuclei (lumps swollen up like nuclei under the skin), dizziness, tinnitus, palpitations and insomnia, etc. It is not recommended for those who suffer from spleen deficiency and essence slippage. Spleen deficiency essence slippery people avoid using. It is recommended that the rational choice of health care products, the use of drugs is recommended under the guidance of a doctor.