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The disease originates from Wind-Cold invasion and is exacerbated by improper diet. The *Jin Gui Yao Lue* states: "When Wind-Cold pathogens contend with each other, dizziness occurs immediately after eating; the Qi of grain fails to digest, causing the Stomach to suffer from turbid Qi accumulation. This turbid Qi flows downward, leading to urinary obstruction. The Yin aspect is affected by Cold, while Heat flows into the Bladder, resulting in generalized jaundice. This condition is named Grain Jaundice (Gu Dan)." It further states: "Grain Jaundice presents with alternating chills and fever, anorexia, dizziness upon eating, discomfort in the chest and heart region, and eventual yellowing of the body over time. This is Grain Jaundice, which should be treated primarily with Yinchen Hao Tang."

Yinchen Hao Tang (Cinnamon Twig and Rhubarb Decoction, specifically the larger formula mentioned earlier): This is a formula for purging heat from the Lower Jiao. It is suitable for patients with excess constitution and constipation; it should not be used otherwise.

Fuling Yinchen Zhizi Tang (Poria, Yin Chen, and Gardenia Decoction) [Source: *Yixue Faming*]: Treats Grain Jaundice characterized by epigastric fullness and oppression, fatigue and heaviness in the four limbs, yellowing of both the body and eyes, mental restlessness and irritability, nausea and urge to vomit, slow digestion of food, and dysuria with heat sensation.
Ingredients: Yin Chen (Artemisiae Scopariae Herba, 1 qian), Fuling (Poria, 5 fen), Zhizi (Gardeniae Fructus), Cangzhu (Atractylodis Rhizoma, peeled and stir-fried), Baizhu (Atractylodis Macrocephalae Rhizoma, each 3 qian), Huanglian (Coptidis Rhizoma), Zhike (Aurantii Fructus Immaturus), Zhuling (Polyporus), Zexie (Alismatis Rhizoma), Chenpi (Citri Reticulatae Pericarpium), Fangji (Stephaniae Tetrandrae Radix, each 2 fen), Huangqin (Scutellariae Radix, 6 fen), Qingpi (Citri Reticulatae Pericarpium Viride, 1 fen).
Usage: Decoct with long-flowing water, strain, and take warm on an empty stomach.
Analysis: Zhizi and Yin Chen purge damp-heat and resolve jaundice; Huanglian and Zhike purge epigastric fullness; Heat can injure Qi, so Huangqin is used to address this; Damp-heat stagnating in the Stomach is removed by Cangzhu, Baizhu, and Qingpi; Damp-heat flowing into the meridians and Bladder is drained by Fuling, Zhuling, and Fangji.

Danfan Wan (Chalcanthite Pill) [Source: *Benshi Fang*]: Treats men and women suffering from post-prandial fatigue, sallow complexion with puffy swelling, and mass-like accumulations (Pi Ji).
Ingredients: Danfan (Chalcanthite, pure, 3 liang), Huangla (Yellow Beeswax, 2 liang), Dazao (Jujubae Fructus, 50 pieces).
Usage: Place head vinegar (3 sheng) in a stone vessel, add Danfan and Dazao, and simmer slowly over low heat for half a day. Remove the dates, peel and pit them. Then add Huangla and simmer for another one to two hours until it forms a paste. Add Lat Cha (aged tea, 2 liang) and mix well to form pills the size of paulownia seeds. Take 20 pills per dose, washed down with strong tea liquor, three times daily.
Xu Shuwei stated: Zhao Yancai, a member of the imperial clan, suffered from hematochezia, a waxen sallow complexion, and inability to eat. This was caused by alcohol-induced pathology. He was given this prescription. After completing the course, the bleeding stopped, his complexion became fresh and lustrous, and his appetite returned to normal.

Formula for Treating Damp-Heat Jaundice and Strengthening the Spleen to Remove Dampness [Source: *Qiankun Shengyi*]:
Ingredients: Zhensha (Hematites, ground clean, washed with embroidered water until white, soaked overnight in rice vinegar in an iron pot, dried, stir-fried 3-5 times until red-hot, 2 liang 5 qian), Chen Jingmi (Aged Oryzae Fructus, half sheng, soaked in water overnight, pounded into powder, formed into blocks, boiled until half-cooked), Baicaoshuang (Soot from burning various herbs, 1.5 liang).
Usage: Pound the above three ingredients a thousand times, form into pills the size of paulownia seeds. Take 50 pills per dose, washed down with wine infused with Wujia Pi (Acanthopanacis Cortex), Niuxi (Achyranthis Bidentatae Radix), and Mugua Gen (Chaenomelis Radix). If diarrhea occurs upon initial administration, it indicates the expulsion of the pathogenic root.

Spleen Labor Jaundice Formula [Source: *Zhai Yuan Fang*]:
Ingredients: Zhensha (Hematites, 4 liang, stir-fried seven times with vinegar), Ganxi (Dried Resina Taxilli, burned to retain its nature, 2 qian), Xiangfu (Cyperi Rhizoma, 3 qian), Pingwei San (Level the Stomach Powder, 5 qian).
Usage: Grind into fine powder, bind with steamed dough to form pills the size of paulownia seeds, take with warm water.

Divine Formula for Jaundice with Accumulation [Source: *Xian Xing Zhai Biji*]:
Ingredients: Cangzhu (Atractylodis Rhizoma, stir-fried), Houpo (Magnoliae Officinalis Cortex, stir-fried with ginger juice), Juhong (Citri Reticulatae Pericarpium Rubrum), Gancao (Glycyrrhizae Radix et Rhizoma), Zharon (Crataegi Fructus), Fuling (Poria), Maiya (Hordei Fructus Germinatus, each 2 liang), Binglang (Arecae Semen, 1 liang), Lüfan (Green Chalcanthite, ground finely with vinegar, 1.5 liang).
Usage: Grind into fine powder, bind with jujube flesh to form pills the size of paulownia seeds. Take 1 qian per dose, washed down with plain boiled water, three times daily. Patients taking alum-containing medicines must avoid buckwheat and pufferfish; violating this prohibition leads to death.
I often treat exhaustion injuries due to overexertion, presenting with sallow complexion but preserved appetite, and weakness in the four limbs. I use Zaojiuqu Wan (Wine Yeast Pills) combined with Pingwei San, adding Zaofan (Ferrum Sulfate, calcined through-and-through) and Zhensha. Take 10 pills washed down with light vinegar water, twice daily.