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1. Vomiting with both material discharge and sound is termed "Ou" (Vomiting), which is a sign of vomiting; dry heaving without material discharge but with sound is termed "Yue" or "Gan Ou" (Dry Heaving). If the complexion turns cyanotic, fingernails turn black, abdominal pain persists unrelieved, and cold limbs do not recover warmth, it indicates a critical and ominous prognosis.
[Note] A cyanotic complexion and black fingernails indicate persistent severe abdominal pain and irreversible cold extremities, revealing its critical nature.
Xiao Banxia Tang (Minor Pinellia Decoction), Ju Pi Ban Xia Tang (Tangerine Peel and Pinellia Decoction), Da Banxia Tang (Major Pinellia Decoction), Huang Lian Ban Xia Tang (Coptis and Pinellia Decoction), Ding Yu Liu Jun Tang (Clove and Evodia Six-Ingredient Decoction)

2. For treating vomiting, Ban Xia (Pinelliae Rhizoma) and Sheng Jiang (Zingiberis Rhizoma Recens) are considered the supreme remedies. If Qi stagnation is severe, add Chen Pi (Citri Reticulatae Pericarpium); if Qi deficiency exists, add honey and Ren Shen (Ginseng Radix et Rhizoma). If Heat is severe accompanied by constipation, use purgative methods (such as Sheng Jiang and Huang Lian to clear heat and purge); if Cold is severe, use Ding Xiang (Caryophylli Flos) and Wu Zhu Yu (Evodiae Fructus) combined with Liu Jun Zi Tang (Six-Gentlemen Decoction).
[Note] "Bian Bi" refers to the obstruction of both large and small bowel movements, for which purgative therapy is appropriate. However, one must never use purgatives at the initial stage of vomiting, lest it contradict the disease trend and exacerbate the condition.
Wu Zhi Yin (Five-Juice Drink), Liu Hong San (Sulfur and Mercury Powder), Hua Zhi Wan (Stasis-Transforming Pill)

3. To moisten dryness and stop vomiting, Wu Zhi Yin (Five-Juice Drink) can be used, composed of Lu Gen (Imperatae Rhizoma), Bi Qi (Dioscoreae Bulbiferae), Gan Zhe (Sacchari Candi), Zhu Li (Bambusae Succus), and Jiang Zhi (Zingiberis Succus). For cases of severe vomiting where even decoctions and water are vomited immediately upon reaching the throat, heavy-sinking medicines should be employed. Grind Shi Liu Huang (Sulfur) two qian and Shui Yin (Hydrargyrum) one qian together into an extremely fine powder resembling coal color. Mix with aged wine and ginger juice for administration. Add a small amount of plain boiled water, or administer in one dose; this prevents the medicine from being vomited out. On the following day, if black foul matter is excreted in the stool, subsequent intake of other decoctions will no longer induce vomiting. If black stool is not passed, the medicine may be administered again, continuing until the passage of black stool occurs. Vomiting accompanied by pain is due to accumulation/stagnation, and Hua Zhi Wan (Stasis-Transforming Pill) is indicated.

Shi Xie (Damp Diarrhea), Ru Xie (Soft Diarrhea), Shui Xie (Watery Diarrhea), Dong Xie (Sudden/Profuse Diarrhea), Han Xie (Cold Diarrhea), Sun Xie (Undigested Food Diarrhea), Pi Xie (Spleen Diarrhea), Shen Xie (Kidney Diarrhea)

1. Dampness excess leading to Ru Xie (Soft Diarrhea) is essentially Shui Xie (Watery Diarrhea), characterized by excessive water content and borborygmus without abdominal pain. Cold-dampness leading to Dong Xie (Sudden/Profuse Diarrhea) is essentially Han Xie (Cold Diarrhea), characterized by loose stools resembling duck feces that are clear and cold, abdominal pain, and loud borborygmus like thunder. Sun Xie (Undigested Food Diarrhea) is named so because undigested food is passed, caused by Spleen Earth deficiency and Liver Wood excess, resulting in the failure of Clear Qi to ascend. Pi Xie (Spleen Diarrhea) is characterized by abdominal fullness and diarrhea after eating; Shen Xie (Kidney Diarrhea) is due to Kidney Yang deficiency and cold, manifesting as multiple diarrheal episodes every morning.
[Note] "Ru" means watery. "Dong" means pouring down directly. "Ya Tang" refers to loose stools resembling duck feces, clear and cold. "Tong" refers to abdominal pain. "Lei Ming" refers to very loud borborygmus. "Bu Sheng Qing" refers to Clear Qi remaining below and failing to ascend. "Pi Xie" refers to diarrhea due to Spleen deficiency. "Shi Xie" refers to diarrhea occurring immediately after eating. "Chen Shu Xing" refers to having several diarrheal episodes each morning.

Shi Xie (Food Stagnation Diarrhea), Wei Xie (Stomach Diarrhea), Yin Xie (Fluid Retention Diarrhea), Tan Xie (Phlegm Diarrhea), Huo Xie (Fire Diarrhea), Shu Xie (Summerheat Diarrhea), Hua Xie (Slippery/Incontinence Diarrhea), Da Jia Xie (Great Mass Diarrhea)

2. Diarrhea caused by food injury is Wei Xie (Stomach Diarrhea), characterized by belching, abdominal pain, and foul, sticky stools. Thirst followed by drinking, then diarrhea, followed by thirst again, where diarrhea comes and goes intermittently, belongs to Tan Xie (Phlegm Diarrhea). Huo Xie (Fire Diarrhea) is characterized by paroxysmal pain and a preference for cold drinks. Shu Xie (Summerheat Diarrhea) is characterized by a greasy complexion, sweating, thirst, and irritability. Hua Xie (Slippery Diarrhea) refers to chronic diarrhea lasting long periods with loss of control. Da Jia Xie (Great Mass Diarrhea) was viewed as Li Ji (Dysentery) in contemporary times.
[Note] Diarrhea caused by overeating is named Shi Xie (Food Stagnation Diarrhea), which is also Wei Xie (Stomach Diarrhea). "Hui Er Nian" means the excreta are foul-smelling and sticky. "Ke Er Yin, Yin Er Xie..." describes the cycle of thirst-drink-diarrhea-thirst-drink-diarrhea, which is Yin Xie (Fluid Retention Diarrhea). "Shi Huo Xie, Shi Huo Bu Xie" means sometimes diarrhea occurs, sometimes it does not, indicating Tan Xie (Phlegm Diarrhea). "Zhen Zhen" means a bout of diarrhea accompanied by a bout of pain. "Da Jia Xie" refers to the dysentery disease prevalent at that time.