This soup nourishes kidney yin, strengthens spleen and stomach, and relieves deficiency and heat. Oyster in soup is a dry product of oyster meat, which is sweet and salty, has the functions of nourishing yin and tonifying kidney, and removing yin and heat. It contains dextrose, levofucose, taurine, inorganic salts, glutathione, various amino acids and vitamins, and is a food with excellent nutrition. According to the Book of Food, it can "cure insomnia at night, with uncertain will." The Compendium of Medical Forest says that it can "clear away lung, nourish heart, nourish yin and nourish blood." "Despei Materia Medica" says that it can "get hot after menstruation". Nostoc flagelliforme is sweet and cool, which is beneficial to cool blood and reduce fire. Eyebrow beans, also known as rice beans, are sweet and light in taste, and have the functions of strengthening spleen and invigorating qi, tonifying kidney and infiltrating dampness. Rihuazi Materia Medica holds that they have the function of "warming the stomach". The pork is sweet and salty, and can nourish yin and moisten dryness. Combined decoction, which can strengthen spleen and nourish yin, nourish kidney and reduce fire, is commonly used as an auxiliary treatment soup for yin deficiency and internal heat. This soup nourishes yin and blood, but is not greasy; it can reduce fever and reduce fire, but it is not cold; it can promote diuresis and expel turbidity, but it is not dry; therefore, it is a common soup for families in Xian Yi, old and young.