1. Oyster is a kind of marine life. Raw oyster has the effects of calming nerves, helping sleep, nourishing yin, suppressing yang, softening hard mass, and resolving hard mass, and can be used for treating neurasthenia, sleep disorder, anxiety, depression, vertigo syndrome, scrofula, tinnitus, lipoma, and abdominal agglomeration.

2. Calcined oyster shell has astringent effect, and can be used to treat hyperhidrosis caused by daytime exercise, sweating after falling asleep, male nocturnal emission, female leucorrhea, acute and chronic gastritis, digestive tract ulcer and other diseases.