Vinegar turtle shell has the effects of nourishing yin and submerging yang, subduing heat and removing steam, and softening and dispersing knots (softening and dispersing hard lumps). It is mainly used for treating deficiency heat, hydrophobia, and obstruction in the abdomen (the appearance of tangible or intangible lumps in the abdomen, with a feeling of distension and pain), and so on. Turtle shell is a yin tonic traditional Chinese medicine, the dorsal armor of the turtle of the family Pelodiscidae, with the effects of nourishing yin and submerging yang, subduing heat and removing steam, and softening and dispersing lumps. The effect of turtle shell in the liver meridian can be enhanced after vinegar preparation. With a salty taste and slightly cold nature, it enters the liver and kidney meridians and is good at nourishing yin, subduing heat and removing steam, as well as nourishing yin and submerging yang to calm the wind. It is suitable for treating the symptoms of yin deficiency caused by yin deficiency of liver and kidney, yin deficiency and wind, and yin deficiency and hyperactivity of yin and yang (deficiency of yin fluid and hyperactivity of yang qi). This product is also good at softening and dispersing knots, and is used in cases of blood stagnation and menstrual closure, accumulation of obstruction in the abdomen, prolonged malaria and malaria mothers, and enlargement of the liver and spleen. Adverse effects of Vinegar Turtle Shell are not clear. Due to its cold nature, it is contraindicated for people with coldness in the spleen and stomach (spleen and stomach weakness and cold), and should be used with caution in pregnant women. The drug is recommended to be used under the guidance of a professional physician, and should not be used blindly on its own.