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The *Jingui Yaolue* (Essential Prescriptions of the Golden Cabinet) states: Inducing sweating causes yang to become weak, and qi in the diaphragm to become deficient, resulting in a rapid pulse. A rapid pulse indicates exogenous heat or deficiency-heat that cannot digest food, which is due to cold deficiency in the stomach.

When stomach qi is insufficient, one eats in the morning and vomits in the evening, known as Fanwei (Reversal Stomach / Regurgitation). It further states: If the yang pulse is floating and choppy, floating indicates deficiency, and choppy indicates injury to the spleen. When the spleen is injured, it fails to grind grains, leading to vomiting in the evening after eating in the morning. Vomiting in the morning after eating in the evening occurs because retained food is not digested; this is named Fanwei. Wang Bing commented: Because food eaten in the morning enters the stomach, but the stomach qi is too weak to transform it, by evening when stomach qi moves inward, it clashes with pathogenic factors, causing the food to be regurgitated. Chao Yuanfang stated: When Ying (nutritive) and Wei (defensive) qi are both deficient, and blood and qi are insufficient, stagnant water and accumulated fluids remain in the epigastrium, leading to coldness of the zang organs. Coldness of the zang organs prevents the spleen from grinding food, so retained food is not digested; qi rebels upward forming Fanwei, resulting in vomiting in the evening after eating in the morning, and vomiting in the morning after eating in the evening. In severe cases, vomiting occurs immediately after eating. The pulse is tight and wiry; tight indicates cold, and wiry indicates deficiency. The combination of deficiency and cold causes vomiting immediately after eating, called Fanwei. Classics state: Food cannot enter due to fire (heat); food enters and comes back out due to lack of fire (lack of yang/mingmen fire). Various texts discuss this in detail.

Fanwei fundamentally stems from damage to the stomach by food. "Ou" (vomiting) refers to the reversal of the stomach opening. It is often caused by initial rebellion of stomach qi, excessive alcohol consumption, accumulation of wind-cold, sorrowful thoughts and depression, pent-up anger, retention of undigested food, chronic masses, accumulation of cold-phlegm, which disturb spleen deficiency and weaken the stomach's ability to digest grains, thus forming this syndrome. Tracing its origin, women suffering from this condition do so due to deficiency and depletion of blood and qi; men suffer from it mostly due to cold exhaustion of the lower yuan (kidneys and mingmen). Additionally, irregular emotions like anger and joy, and frequent fright, cause qi and phlegm to bind together, ascending without descending, remaining in the throat, forming Ge Ye (Dysphagia). Phlegm binding results in inability to expectorate or swallow, accompanied by dry stools resembling sheep dung, named Jielong Fanwei (Colon-Colligation Fanwei). Generally, Fanwei arises from Ge Ye. The *Neijing* states that yang obstruction is called Ge. Qi and spirit belong to yang; leisure keeps them peaceful, while labor depletes them. Disturbance of qi and spirit causes yang to obstruct first, followed by yin chaos. Yin-yang disharmony leads to organ disease. Obstruction in the chest and diaphragm forms Geqi (Diaphragm Qi), while retention in the throat forms Wuye (Five Dysphagias). Improper treatment of Wuge, prolonged over time, eventually becomes Fanwei. Treatment methods: Tonify qi for qi deficiency; nourish blood for blood deficiency; regulate yin and yang; resolve phlegm and direct qi downward. When yin and yang are balanced, qi flows smoothly, and phlegm descends, the syndrome resolves naturally.

Wang Bing also stated: In Shibì (Food Bi Syndrome), pain occurs in the epigastrium after eating, dull and unbearable, ceasing only after vomiting. This is due to rebellious stomach qi failing to descend. If the pulse is soft and scattered, it indicates Shibì. Furthermore, lung disease transmitting to the liver is called Ganbi (Liver Bi), characterized by diaphragmatic pain and vomiting after eating. The *Jingui Yaolue* also mentions Liver Cold, Heart Wind, and Jueyin disease, all presenting with immediate vomiting upon eating. Practitioners must rely entirely on precise pulse diagnosis and appropriate medication. Physicians hold the fate of people; can they not be cautious? For instance, Shige Qisan (Ten Diaphragms Qi Powder) treats Cold Diaphragm, Wind Diaphragm, Qi Diaphragm, Phlegm Diaphragm, Heat Diaphragm, Sorrow Diaphragm, Grief Diaphragm, Joy Diaphragm, Water Diaphragm, and Food Diaphragm. Used correctly according to pulse and symptoms, it yields efficacy; used incorrectly, it brings grave harm. Moreover, Fanwei should not be treated harshly with aromatic and drying agents. Treating without following proper order is like adding fuel to a fire. A floating and moderate pulse indicates a favorable prognosis; a deep and choppy pulse indicates an adverse prognosis. Careful examination is essential.