吐证有三∶曰呕、曰吐、曰哕。古人谓∶呕属阳明，有声有物，气血俱病也；吐属太阳，有物无声，血病也；
哕属少阳，有声无物，气病也。
独李杲谓呕、吐、哕俱属脾胃虚弱。洁古老人又从三焦以分气、积、寒之三因。然总不越《内经》诸逆上冲
之一语也。知此则不辨自明矣。
小儿因乳食过饱，停蓄胃中，以致运化不及，吐多乳片，犹如物盛满而上溢也。其证身热面黄，肚腹膨胀，
古法主消乳丸（如制香附、炒神曲、炒麦芽、陈皮、炒砂仁、炙甘草，共为细末，滴水为丸，如粟米大），量儿
大小服之。姜汤化下。
〔真按〕小儿因伤乳而吐，但用炒神曲八分，茯苓皮一钱，炒砂仁三分，炙甘草三分，生姜皮一分。服之，
即能化其宿乳，安其胃腑，则吐自止。
小儿因饮食无节，过食油腻，或面食等物，以致壅塞中脘而吐。其证肚腹胀热，恶食口臭，频吐酸粘，眼胞
虚浮，身体发热。古法主先用三棱丸止其吐（如煨三棱、陈皮、姜制半夏、炒神曲、姜制黄连、枳实、丁香，共
研细末，面和为丸，如黄米大，食后姜汤下）。
再用和胃汤化其滞（如陈皮、半夏、缩砂仁、炒苍术、姜制浓朴、藿香叶、炒香附、炙甘草、山楂、炒神曲，
引用生姜）。
〔真按〕小儿因伤食而吐，但用山楂炭一钱，白云苓一钱，莱菔子三分，炒神曲八分，广橘红一钱，引用五
谷虫三分。
呕吐这一类病症主要有三种：叫做呕、叫做吐、叫做哕。古人认为：呕属于阳明经，既有声音又有食物吐出，是气血都受病的表现；吐属于太阳经，只有食物吐出而没有声音，是血分受病的表现；哕（呃逆）属于少阳经，只有声音而没有食物吐出，是气分受病的表现。唯独李杲认为呕、吐、哕都属于脾胃虚弱的范畴。洁古老人又从三焦的角度来区分气、积、寒这三种病因。然而总归不超出《内经》中“各种逆气上冲”这一句话的含义。明白了这一点，就不需要刻意分辨也能自然明了了。
小儿因为吃奶过饱，乳汁停滞蓄积在胃中，导致运化功能不及，所以吐出的多为乳片，就像容器盛满后向上溢出一样。其症状表现为身体发热、面色发黄、肚腹膨胀。古法主要使用消乳丸（由制香附、炒神曲、炒麦芽、陈皮、炒砂仁、炙甘草组成，共研为细末，滴水制成如粟米大小的药丸），根据患儿的大小服用。用姜汤送服化开。
〔真按〕小儿因伤乳而呕吐，只需使用炒神曲八分，茯苓皮一钱，炒砂仁三分，炙甘草三分，生姜皮一分。服用后，就能化解宿存的乳汁，安和胃腑，呕吐自然停止。
小儿因为饮食没有节制，过量食用油腻或面食等食物，导致中脘部位壅塞阻滞而发生呕吐。其症状表现为肚腹胀满发热、厌恶进食、口中有臭味、频繁吐出酸粘物、眼睑浮肿、身体发热。古法主张先用三棱丸来止住呕吐（由煨三棱、陈皮、姜制半夏、炒神曲、姜制黄连、枳实、丁香组成，共研为细末，用面糊调和制成如黄米大小的药丸，饭后用姜汤送服）。
然后再用和胃汤来化解食滞（由陈皮、半夏、缩砂仁、炒苍术、姜制浓朴、藿香叶、炒香附、炙甘草、山楂、炒神曲组成，引用生姜煎汤送服）。
〔真按〕小儿因伤食而呕吐，只需使用山楂炭一钱，白云苓一钱，莱菔子三分，炒神曲八分，广橘红一钱，引用五谷虫三分。
There are three types of vomiting syndromes: namely, Ou (vomiting with sound), Tu (spitting up without sound), and Yue (hiccups). The ancients stated that Ou belongs to the Yangming channel, characterized by both sound and expelled matter, indicating disease in both Qi and Blood; Tu belongs to the Taiyang channel, characterized by expelled matter without sound, indicating disease in Blood; Yue belongs to the Shaoyang channel, characterized by sound without expelled matter, indicating disease in Qi. Li Gao alone asserted that Ou, Tu, and Yue all belong to Spleen-Stomach deficiency. Jiegu Laoren further differentiated the three causes—Qi, accumulation, and Cold—from the perspective of the Triple Burner. However, all these explanations do not exceed the statement in *Neijing* regarding "various rebellious Qi rushing upward." Understanding this principle makes differentiation unnecessary as clarity arises naturally.
In infants, excessive milk intake leads to stagnation in the Stomach, causing insufficient transformation and transportation. Consequently, vomited matter consists largely of undigested milk curds, resembling overflow from an overfilled container. Symptoms include fever, sallow complexion, and abdominal distension. The ancient method primarily employs Xiaoru Wan (Digest Milk Pill) [composed of Zhi Xiangfu (Prepared Cyperi Rhizoma), Chao Shenqu (Stir-fried Mass Medicamentum Fermentatum Chinensis), Chao Maiya (Stir-fried Hordei Fructus Germinatus), Chenpi (Citri Reticulatae Pericarpium), Chao Sharen (Stir-fried Amomi Fructus), Zhi Gancao (Honey-fried Glycyrrhizae Radix et Rhizoma); processed into fine powder, mixed with water to form pills the size of millet seeds], dosed according to the infant's age and size. Administered with Ginger Decoction to dissolve the pill.
[Author's Note] For vomiting due to milk injury, simply use Chao Shenqu (Stir-fried Mass Medicamentum Fermentatum Chinensis) 8 fen, Fuling Pi (Poria Cocos Sclerotium Exocarpium) 1 qian, Chao Sharen (Stir-fried Amomi Fructus) 3 fen, Zhi Gancao (Honey-fried Glycyrrhizae Radix et Rhizoma) 3 fen, and Jiangshi Pi (Zingiberis Officinalis Rhizoma Pericarpium) 1 fen. Upon administration, the retained milk is resolved, the Stomach is harmonized, and vomiting ceases spontaneously.
Infants may suffer from irregular dietary habits, overconsumption of greasy foods or wheat-based products, leading to obstruction in the Zhongwan region and subsequent vomiting. Symptoms include abdominal distension and heat, aversion to food, foul breath, frequent expulsion of sour and sticky matter, edema of the eyelids, and body fever. The ancient protocol first prescribes Sanleng Wan (Sanleng Pill) to arrest vomiting [composed of Wei Sanleng (Baked Bletillae Rhizoma), Chenpi (Citri Reticulatae Pericarpium), Jiang Banxia (Ginger-processed Pinelliae Rhizoma), Chao Shenqu (Stir-fried Mass Medicamentum Fermentatum Chinensis), Jiang Huanglian (Ginger-processed Coptidis Rhizoma), Zhishi (Aurantii Fructus Immaturus), Dingxiang (Caryophylli Flos); processed into fine powder, bound with dough to form pills the size of broomcorn millet seeds, taken after meals with Ginger Decoction].
Subsequently, Hewei Tang (Harmonize the Stomach Decoction) is used to resolve stagnation [composed of Chenpi (Citri Reticulatae Pericarpium), Banxia (Pinelliae Rhizoma), Suosharen (Amomi Fructus), Chao Cangzhu (Stir-fried Atractylodis Rhizoma), Jiang Houpo (Ginger-processed Magnoliae Officinalis Cortex), Huoxiang Ye (Agastaches Herba), Chao Xiangfu (Stir-fried Cyperi Rhizoma), Zhi Gancao (Honey-fried Glycyrrhizae Radix et Rhizoma), Shanzha (Crataegi Fructus), Chao Shenqu (Stir-fried Mass Medicamentum Fermentatum Chinensis); administered with Ginger infusion].
[Author's Note] For vomiting due to food injury, simply use Shanzha Tan (Charred Crataegi Fructus) 1 qian, Baiyunling (Poria Cocos) 1 qian, Laifuzi (Raphini Semen) 3 fen, Chao Shenqu (Stir-fried Mass Medicamentum Fermentatum Chinensis) 8 fen, Guangjuhong (Citri Reticulatae Pericarpium Rubrum) 1 qian, and Wuguchong (Tenebrio Molitor Larva) 3 fen as the guiding substance.