胃为水谷之海，上通乎咽，内而不出，如初发热有吐逆之证，此火邪犯胃，其气上逆，治之则易，若自出现以
至收靥有是证者，乃疮集于咽门，攻于胃脘，吞咽不利，治之则难。由于不知预解咽喉之法，渐变为失音呛水，而
不可救矣。初虞世云∶痘疮吐逆，无痰益黄散（脾）。有痰二陈汤（大科痰饮），或橘皮半夏汤。不止者加丁香（胃
寒者、宜之，胃热、宜加芦根茅根枇杷叶黄连）。若吐而泻者，亦宜益黄散及陈氏木香散、异功散。
吐而身热烦渴，腹满喘，大小便涩，面赤者，当利小便。不瘥者，宣风散下之（痘发热）。〔薛〕前证，若手足并冷，渴
饮热汤，或腹作痛，中气虚寒也，宜用益黄散。手足不冷，吐逆痰涎，中气虚弱也，宜用橘皮半夏汤。手足并热，热毒
壅滞也，宜用导赤散。口干，饮乳不彻，胃经气热也，宜用竹茹汤。吐逆不乳，或吐乳酸秽，此脾气
虚而乳食停滞也，宜枳术丸。如初发热，暴吐不止，此火气上逆也，茱连散主之。
茱连散
黄连（半两） 吴茱萸（二钱）
上二味，同炒，研细末。每服半钱，生姜汤调服。
橘皮汤
橘皮（半留白，半去白，炒，二钱） 半夏（一钱） 白茯苓（一钱半）
上锉细。加生姜五分，水一盏，煎七分，去滓，温服。
橘皮汤 治呕吐不止，饮食不入。
陈皮 生姜（各一钱） 人参（五分）
上，水煎，作三四次服之。
橘皮半夏汤
橘皮 半夏（等分）
上，每服三钱，姜枣水煎。
如因饮水过多而呕吐者，此水逆也，五苓散主之。
如因伤食而呕吐者，以丁香脾积丸微利之。
如无上证而呕哕者，人以胃气为本，胃者土也，土败则木来侮之，今木挟相火
之势，上乘乎胃，其气自脐下直犯清道，上出于贲门胃上口也，微则干呕，甚则哕，
土败之象也。《太素》曰∶弦绝者其声嘶败，木陈者其叶落，病深者其声哕，短针无取，毒药无攻，谓不治也。
附方
丁香煮散 治脾胃虚冷，呕吐不食。
丁香（不见火） 红豆 甘草 干姜 青皮 川乌（去皮） 陈皮 良姜 胡椒 益智（各等分）
上锉散。每服三钱，用水一盏，生姜三片，煎六分，加盐一捏，不拘时服。
加味鼠粘子散 治咽中有疮，作呕。
桔梗 射干 山豆根 防风 干葛 陈皮 荆芥 连翘
水煎，细细呷之。
灯心竹叶汤 治干呕。
竹叶（三十片） 灯心（三十根）
水煎服。
秘方治呕吐并吐泻不止，水谷不纳者，速效。
用多年灶心赤色土，为细末，每服二钱，米饮调下，小儿只一钱。
The Stomach is the sea of water and grain, connecting upwards to the pharynx. If symptoms of fever accompanied by vomiting and regurgitation appear in the initial stage, this is due to Fire pathogenic factors invading the Stomach, causing Qi to rebel upwards; treatment is relatively easy. However, if these symptoms persist from the onset of the rash until it scabs over, it indicates that the toxin of the smallpox/mumps (chuang) has gathered at the gate of the pharynx and attacks the epigastrium, leading to difficulty in swallowing, making treatment difficult. Due to a lack of knowledge on how to preemptively resolve pharyngeal toxicity, the condition gradually evolves into aphonia and choking on water, becoming incurable.
Chu Yushi stated: For vomiting and regurgitation caused by chuang (smallpox/rash diseases), if there is no phlegm, Yi Huang San (Spleen) should be used; if there is phlegm, Er Chen Tang (Phlegm-Fluid Retention in General Practice) or Ju Pi Ban Xia Tang should be used. If vomiting does not cease, add Ding Xiang (Clove). This is suitable for those with Stomach Cold; for those with Stomach Heat, Lu Gen (Reed Rhizome), Mao Gen (Imperata Rhizome), Pi Pa Ye (Loquat Leaf), and Huang Lian (Coptis Rhizome) are suitable. If both vomiting and diarrhea occur, Yi Huang San, Chen Shi Mu Xiang San (Chen's Costus Powder), or Yi Gong San are also appropriate.
If vomiting is accompanied by fever, irritability, thirst, abdominal distension, panting, obstructed urination and defecation, and a red face, promoting urination is indicated. If the condition does not improve, Xuan Feng San should be used to purge (for fever during chuang). Xue Ji noted: Regarding the aforementioned syndromes, if the hands and feet are cold, there is a desire to drink hot soup, or abdominal pain occurs, this indicates deficiency-cold of the Middle Qi, and Yi Huang San is suitable. If the hands and feet are not cold, but there is vomiting, regurgitation, and phlegm-saliva, this indicates weakness of the Middle Qi, and Ju Pi Ban Xia Tang is suitable. If both hands and feet are hot, this indicates stagnation of Heat-Toxin, and Dao Chi San is suitable. If there is dry mouth and an inability to finish nursing, this indicates Qi-Heat in the Stomach Meridian, and Zhu Ru Tang is suitable. If vomiting and regurgitation prevent nursing, or if sour, foul-smelling vomit is expelled, this indicates Spleen Qi deficiency with stagnation of milk and food, and Zhi Zhu Wan is suitable. If sudden, continuous severe vomiting occurs at the initial stage of fever, this indicates rebellious Fire-Qi, and Zhu Lian San is the primary formula.
[Formula] Zhu Lian San
Composition: Huang Lian (Coptidis Rhizoma) (half tael), Wu Zhu Yu (Evodiae Fructus) (two qian).
Preparation and Administration: Stir-fry these two ingredients together, grind into fine powder. Take half a qian each time, mixed with Ginger Decoction.
[Formula] Ju Pi Tang
Composition: Ju Pi (Citri Reticulatae Pericarpium) (half with white pith, half without, stir-fried, two qian), Ban Xia (Pinelliae Tuber) (one qian), Bai Fu Ling (Poria) (one and a half qian).
Preparation and Administration: Cut finely. Add five fen of Sheng Jiang (Fresh Ginger), one cup of water, decoct to seven-tenths, remove dregs, and take warm.
Indication: Ju Pi Tang treats persistent vomiting and inability to retain food/drink.
[Formula] Ju Pi Tang (Second Formula)
Composition: Chen Pi (aged Citri Reticulatae Pericarpium), Sheng Jiang (Fresh Ginger) (each one qian), Ren Shen (Ginseng Radix et Rhizoma) (five fen).
Preparation and Administration: Decoct in water, divide into three or four doses.
[Formula] Ju Pi Ban Xia Tang
Composition: Ju Pi (Citri Reticulatae Pericarpium), Ban Xia (Pinelliae Tuber) (equal parts).
Preparation and Administration: Take three qian each time, decoct with Sheng Jiang (Fresh Ginger) and Da Zao (Jujubae Fructus) in water.
If vomiting is caused by excessive drinking of water, this is "Water Rebellion" (Shui Ni), treated with Wu Ling San.
If vomiting is caused by food injury, Ding Xiang Pi Ji Wan should be used to mildly promote bowel movement.
If there are no the above symptoms but only dry heaving or hiccups, humans rely on Stomach Qi as the root. The Stomach belongs to Earth. When Earth fails, Wood insults it. Now, Wood carries the momentum of Ministerial Fire, attacking the Stomach from above. Its Qi rises directly from below the umbilicus through the clear pathways, emerging from the Fen Men (cardia/upper opening of the stomach). Mild cases present as dry heaving; severe cases present as hiccups. This is a sign of Earth's failure. *Tai Su* states: "When a string breaks, its sound becomes hoarse and ruined; when a tree ages, its leaves fall; when disease is deep, hiccups occur. At this point, short needles are ineffective, and toxic drugs cannot attack; this is termed untreatable."
[Supplementary Formula] Ding Xiang Zhu San
Indication: Deficiency-cold of the Spleen and Stomach, vomiting, and anorexia.
Composition: Ding Xiang (Caryophylli Flos) (not roasted), Hong Dou (Adzuki Bean), Gan Cao (Licorice Root), Gan Jiang (Dried Ginger), Qing Pi (Aurantii Fructus Pericarpium Rubrum), Chuan Wu (Aconiti Radix, peeled), Chen Pi (Citri Reticulatae Pericarpium), Liang Jiang (Alpiniae Officinarum Rhizoma), Hu Jiao (Piperis Longi Fructus), Yi Zhi (Alpiniae Oxyphyllae Fructus) (equal parts).
Preparation and Administration: Cut into pieces to make a powder. Take three qian each time, with one cup of water and three slices of Sheng Jiang (Fresh Ginger), decoct to six-tenths. Add a pinch of salt, take at any time.
[Supplementary Formula] Jia Wei Niu Bang Zi San
Indication: Sores in the throat causing vomiting.
Composition: Jie Geng (Platycodon Root), She Gan (Belamcandae Rhizoma), Shan Dou Gen (Sophorae Tonkinensis Radix et Cortex), Fang Feng (Saposhnikoviae Radix), Gan Ge (Puerariae Lobatae Radix), Chen Pi (Citri Reticulatae Pericarpium), Jing Jie (Schizonepetae Spica), Lian Qiao (Forsythiae Fructus).
Preparation and Administration: Decoct in water, sip slowly.
[Supplementary Formula] Deng Xin Zhu Ye Tang
Indication: Dry heaving.
Composition: Zhu Ye (Bambusae Folium) (thirty leaves), Deng Xin (Junci Medulla) (thirty stems).
Preparation and Administration: Decoct in water and take.
[Secret Recipe] Treats vomiting accompanied by persistent vomiting and diarrhea, where food and fluids cannot be retained, with rapid effect.
Usage: Use reddish earth from the center of a stove used for many years, grind into fine powder. Take two qian each time, mixed with Rice Drink (Mi Yin); for children, take only one qian.