朝食暮吐为冷吐，乳食不化不臭酸。四肢厥冷面唇白，姜橘丁萸理中煎。
【注】寒吐者，皆因小儿过食生冷，或乳母当风取凉，使寒气入乳，小儿饮之，则成
冷吐之证，其候朝食暮吐，乳食不化，吐出之物，不臭不酸，四肢逆冷，面唇色白，治
当温中定吐。胃微寒者，姜橘散主之；寒甚者，丁萸理中汤主之。
姜橘散
白姜（二钱） 陈皮（一两） 炙甘草（一钱）
上为细末，每服一钱，温枣汤调服。
丁萸理中汤
即理中汤加丁香，吴茱萸（温胃止呕）。
食入即吐因胃热，口渴饮冷吐酸涎，身热唇红小便赤，加味温胆汤可痊。
【注】热吐之证，或因小儿过食煎爆之物，或因乳母过食浓味，以致热积胃中，遂令食
入即吐，口渴饮冷，呕吐酸涎，身热唇红，小便赤色。治宜清热为主，加味温胆汤主之。
加味温胆汤
陈皮 半夏（姜制） 茯苓 麦冬（去心） 枳实（麸炒） 生甘草 竹茹 黄连（姜炒）
引用灯心，水煎服。
【方歌】热吐须用温胆汤，陈皮半夏茯苓良，麦冬枳实生甘草，竹茹黄连水煎尝。
小儿泄泻认须清，伤乳停食冷热惊，脏寒脾虚飧水泻，分消温补治宜精。
【注】泻之一证，多因脾被湿浸，土不胜水而成。然致病之原各异∶或乳食停滞不化，或感受寒暑之气，或
惊邪外触，或脏受寒冷，或脾虚作泻，更有飧泻、水泻之证。致疾之因不同，而调治之法亦异。医者详细辨之，或分消、
或温补，因证施治，庶不误矣。
Morning intake with evening vomiting indicates Cold Vomiting (Leng Tu); the milk and food are undigested and lack a sour or foul odor. The limbs are cold, and the face and lips are pale; treat with Jiangju San (Ginger and Tangerine Peel Powder) or Dingyu Lizhong Tang (Clove and Evodia Decoction for Regulating the Middle).
[Note] Cold Vomiting is caused by infants consuming excessive raw and cold foods, or by nursing mothers exposing themselves to wind and cold, allowing cold pathogenic factors to enter the breast milk. When the infant drinks this milk, Cold Vomiting occurs. Symptoms include morning intake with evening vomiting, undigested milk and food, vomitus that is neither sour nor foul-smelling, cold limbs, and pale complexion and lips. Treatment should focus on warming the middle jiao to stop vomiting. For mild stomach cold, Jiangju San is indicated; for severe cold, Dingyu Lizhong Tang is indicated.
Jiangju San (Ginger and Tangerine Peel Powder)
Paojiang (Prepared Ginger, 2 qian) Chenpi (Aged Tangerine Peel, 1 liang) Zhigancao (Honey-fried Licorice Root, 1 qian)
Grind all ingredients into a fine powder. Take 1 qian per dose, mixed with warm Jujube Decoction.
Dingyu Lizhong Tang (Clove and Evodia Decoction for Regulating the Middle)
This is Lizhong Tang (Regulate the Middle Decoction) plus Dingxiang (Clove) and Wuzhuyu (Evodia Fruit), which warm the stomach and stop vomiting.
Vomiting immediately after eating indicates Stomach Heat; accompanied by thirst, desire for cold drinks, vomiting of sour saliva, body heat, red lips, and dark urine; Jiawei Wendan Tang (Modified Phlegm-Resolving Decoction) can cure it.
[Note] Heat Vomiting may result from infants overeating fried or roasted foods, or from nursing mothers consuming rich and strong-flavored foods, leading to heat accumulation in the stomach. This causes immediate vomiting after eating, thirst with a preference for cold drinks, vomiting of sour saliva, body heat, red lips, and dark urine. Treatment should prioritize clearing heat, using Jiawei Wendan Tang.
Jiawei Wendan Tang (Modified Phlegm-Resolving Decoction)
Chenpi (Aged Tangerine Peel) Banxia (Pinellia Tuber, processed with ginger) Fuling (Poria) Maidong (Ophiopogon Tuber, heart removed) Zhishi (Immature Bitter Orange, bran-fried) Shenggancao (Raw Licorice Root) Zhuru (Bamboo Shavings) Huanglian (Coptis Rhizome, stir-fried with ginger)
Use Dengxincao (Juncus Effusus) as a guiding herb, decoct in water, and take orally.
[Formula Song] For Heat Vomiting, use Wendan Tang; Chenpi, Banxia, and Fuling are excellent. Maidong, Zhishi, and Sheng Gancao, along with Zhuru and Huanglian, are decocted in water and tasted.
Infant diarrhea must be clearly identified: distinguish between damage from milk, food stagnation, cold, heat, and fright. For diarrhea due to visceral cold or spleen deficiency, such as undigested stool (Sun Xie) or watery stool (Shui Xie), treatment with methods to separate and eliminate or to warm and tonify must be precise.
[Note] Diarrhea is mostly caused by dampness soaking the spleen, where earth fails to control water. However, the origins of disease vary: some cases involve milk and food stagnation without digestion, some involve exposure to cold or summerheat pathogens, some involve external fright pathogens, some involve cold affecting the viscera, and some involve spleen deficiency causing diarrhea. There are also specific syndromes of undigested stool (Sun Xie) and watery stool (Shui Xie). Since etiologies differ, therapeutic methods vary. Physicians must differentiate carefully, applying either separation and elimination methods or warming and tonifying methods according to the syndrome, thus avoiding errors.