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Yin Yin (Overflowing Drink) refers to a condition caused by sudden excessive water intake due to extreme thirst. The pathogenic water qi overflows beyond the stomach and intestines and remains between the skin and muscles, hence the name "Yin Yin." This condition causes body pain and heaviness.

Banxia San (Pinellia Powder), sourced from *Shenghui Fang*, treats Yin Yin. Symptoms include phlegm-dampness obstruction in the chest and diaphragm, headache, vomiting and regurgitation, and inability to eat or drink.
Ingredients: Banxia (Pinelliae Rhizoma, 1 liang, washed seven times with boiling water to remove slipperiness); Chifuling (Polypori Umbellati Radix, 3 fen); Baizhu (Atractylodis Macrocephalae Rhizoma, 2 fen); Jiegeng (Platycodonis Radix, 3 fen, radix removed); Zhike (Aurantii Fructus Immaturus, 2 fen, stir-fried with bran until slightly yellow); Fangfeng (Saposhnikoviae Radix, 0.5 liang, radix removed).
Usage: Pound and sieve the above ingredients into a powder. Take 5 qian per dose. Add one zhan of water and three slices of Shengjiang (Zingiberis Rhizoma Recens), decoct to 0.7 zhan, strain, and take warm. No fixed time.

Another method: Treats Yin Yin where pathogenic factors remain undissipated in the chest, rushing upward to attack the head and face, causing inability to eat or drink. It is suitable to take this prescription. (Sourced from *Shenghui Fang*)
Ingredients: Baizhu (Atractylodis Macrocephalae Rhizoma, 3 fen); Muxiang (Aucklandiae Radix, 0.5 liang); Chifuling (Polypori Umbellati Radix, 0.5 liang); Renshen (Ginseng Radix, 0.5 liang); Qianhu (Peucedani Radix, 0.5 liang, radix removed); Banxia (Pinelliae Rhizoma, 1 liang, washed seven times with boiling water to remove slipperiness); Chenpi (Citri Reticulatae Pericarpium, 1 liang, white pith removed, dried); Gancao (Glycyrrhizae Radix et Rhizoma, 0.5 liang, stir-fried until slightly red, cut into pieces); Qianniu (Pharbitidis Semen, 1 liang, slightly stir-fried).
Usage: Pound and sieve the above ingredients into a powder. Take 3 qian per dose. Add one zhan of water and half a fen of Shengjiang (Zingiberis Rhizoma Recens), decoct to 0.6 zhan, strain, and take warm. No fixed time.

Baizhu San (Atractylodes Powder), sourced from *Shenghui Fang*, treats Yin Yin. The treatment principle should be to induce sweating.
Ingredients: Baizhu (Atractylodis Macrocephalae Rhizoma, 3 fen); Mahuang (Ephedrae Herba, 1 liang, nodes and roots removed); Chishao (Paeoniae Radix Rubra, 3 fen); Xuanjinhua (Inulae Flos, 0.5 liang); Guixin (Cinnamomi Cortex, 1 liang); Qianhu (Peucedani Radix, 3 fen, radix removed).
Usage: Pound and sieve the above ingredients into a powder. Take 3 qian per dose. Add one zhan of water and half a fen of Shengjiang (Zingiberis Rhizoma Recens), decoct to 0.6 zhan, strain, and take warm. No fixed time. After taking the medicine, cover with clothing to induce sweat after the time it takes for a person to walk a meal's distance.

Xiao Qinglong Tang (Minor Blue Dragon Decoction), sourced from *Ren Cun Fang*, treats Yin Yin. Symptoms include orthopnea (inability to lie flat while breathing) and wheezing with chest fullness.

Da Qinglong Tang (Major Blue Dragon Decoction), sourced from *San Yin Fang*, treats Yin Yin. The treatment principle should be to induce sweating. Symptoms include body pain and heaviness, absence of sweat, and spasmodic pain.
Ingredients: Mahuang (Ephedrae Herba, 6 liang, nodes removed); Guixin (Cinnamomi Cortex, 2 liang); Gancao (Glycyrrhizae Radix et Rhizoma, 1 liang, honey-fried); Shengjiang (Zingiberis Rhizoma Recens, 3 liang); Shigao (Gypsum Fibrosum, size of a chicken egg, one piece); Xingren (Prunus Armeniaca Semen, peeled, tips removed, double-kernel, stir-fried until yellow).
Usage: Cut the above ingredients. Use nine sheng of water, first decoct Mahuang (Ephedrae Herba), reduce to two sheng, skim off the foam, add other ingredients, decoct to obtain three sheng, strain. Take one sheng warm per dose to induce slight sweating. If sweating is excessive, apply cold powder to the body. If one dose induces sweat and cures the disease, stop subsequent doses; if no sweat, take another dose. If still no sweat, shorten the interval between doses. Avoid cold, greasy food, wheat products, and five pungent vegetables.

Another prescription (sourced from *Shenghui Fang*), treats Yin Yin. The treatment principle should be to induce sweating.
Ingredients: Mahuang (Ephedrae Herba, 1 liang, roots and nodes removed); Guixin (Cinnamomi Cortex, 1 liang); Gancao (Glycyrrhizae Radix et Rhizoma, 0.5 liang, honey-fried until slightly red, cut into pieces); Xixin (Asari Radix et Rhizoma, 0.5 liang); Shigao (Gypsum Fibrosum, 1 liang, crushed); Xingren (Prunus Armeniaca Semen, 0.5 liang, soaked in boiling water, peeled, tips removed, double-kernel, stir-fried with bran until slightly yellow).
Usage: Cut the above ingredients. Use four sheng of water, first decoct Mahuang (Ephedrae Herba), reduce to two sheng, skim off the foam, add other ingredients, decoct to obtain two sheng, strain. Take eight he of the liquid warm per dose to induce slight sweating.

Treats Yin Yin rushing upward, causing dizziness and vertigo, wheezing, and deficiency bloating in the abdomen and hypochondrium. It is suitable to take this prescription.
Ingredients: Xuanjinhua (Inulae Flos, 0.5 liang); Qianniu (Pharbitidis Semen, 0.5 liang, slightly stir-fried); Xingren (Prunus Armeniaca Semen, 0.5 liang, soaked in boiling water, peeled, tips removed, double-kernel, stir-fried with bran until slightly yellow).
Usage: Grind the above ingredients into fine powder. Mix with refined honey to form pills.