梅翁令爱，年甫两龄，仲夏时发热吐泻，渠宅同事方心树兄知医，作暑风食滞治，热甚
烦渴
，吐泻益频。延予至，心兄述其病状，并用药大意。予视其儿，身热肢冷，舌绛苔黄，烦扰
不定。谓心兄曰∶证属暑邪扰胃，热气上冲，以故渴饮吐泻。经云∶诸逆冲上，皆属于火。
暴注下迫，皆属于热。但婴儿质脆，暑邪酷烈，最易激动肝风。许宣治先生论暑风惊候，由
吐泻而后发搐者，谓之慢惊。治之不易，且吐甚于泻，吐多胃伤，不能宣布津液，是以诸药
无验，必得生机活泼，方转灵轴，所制黄土稻花汤一方甚妙。予遇此证，每仿其法，治多应
手。于是方疏黄土、稻花、沙参、茯苓、甘草、半夏、乌梅、木瓜、扁荚叶，因其热甚，再
加黄连，一剂而效。夏月小儿感受暑邪热渴，吐呕不利于香砂术曲者，服此方而晏如。
安波按∶细绎方议，暑邪犯胃为呕，以黄土稻花温而不燥，香而不窜，安胃为君。吐
多伤
液，以沙参茯苓甘草半夏，养而不腻，辅而不滞，使中宫得以运旋，则吐泻不治而自愈矣。
故主为臣，盖土气衰微，致招客邪，则胜已之木来侮，可不待言而知也。故以乌梅、木瓜预
以定木为佐，而脾胃得以安，肝得以伏，而炎炎之暑邪未驱，故使以扁豆叶得金气之最早，
祛暑平木，良由斯乎。
梅翁的女儿，年仅两岁，在仲夏时节出现发热、呕吐和腹泻的症状。他家中同事方心树先生通晓医术，将其诊断为暑风与食积停滞，结果高热加重，烦渴更甚，呕吐和腹泻也更加频繁。请我诊治时，方先生陈述了病情及用药大意。我观察患儿，见其身体发热但四肢发冷，舌质深红而苔黄，烦躁不安。我对方先生说：此证属于暑邪扰乱胃腑，热气上冲，因此出现口渴饮水、呕吐和腹泻。《内经》说：“各种向上冲逆的症状，都归属于火。”“急骤的泄泻且伴有肛门灼热感，都归属于热。”只是婴儿体质娇嫩，暑邪猛烈，最容易引动肝风。许宣治先生论述暑风惊厥候，指出由吐泻之后才发生抽搐的，称为慢惊（慢脾风）。治疗起来不容易，况且呕吐比腹泻更严重，呕吐过多会损伤胃气，导致津液无法输布，所以之前的药物无效，必须使生机恢复活跃，才能扭转局面。他所创制的黄土稻花汤一方非常巧妙。我遇到此类病症，常仿效他的方法，治疗大多见效。于是我为他开具了黄土、稻花、沙参、茯苓、甘草、半夏、乌梅、木瓜、扁豆叶组成的方剂，因为热势很盛，再加黄连，服用一剂即见效。夏季小儿感受暑邪，出现热渴、呕吐，不适合使用香砂术曲类药物的，服用此方则安然无恙。
安波按语：仔细推敲方义，暑邪侵犯胃腑导致呕吐，用黄土和稻花作为君药，因其性温而不燥烈，香气温和而不走窜，能安定胃气。呕吐过多损伤津液，用沙参、茯苓、甘草、半夏作为臣药，滋养津液而不腻滞，辅助正气而不呆板，使中焦脾胃得以运化旋转，那么呕吐和腹泻不治疗也能自愈。所以它们作为臣药，是因为土气衰微，招致外邪入侵，那么克制土的木气就会来侮犯，这是不言自明的道理。因此用乌梅、木瓜作为佐药，预先制约肝木，从而使脾胃得以安宁，肝气得以潜藏。然而炎炎暑邪尚未驱除，所以用扁豆叶作为使药，因为它最先得金气之清肃，能祛暑平抑肝木，大概正是如此吧。
The daughter of Elder Mei, aged only two, presented with fever, vomiting, and diarrhea in midsummer. Her father’s colleague, Mr. Fang Xinshu, who was knowledgeable in medicine, treated it as Summerheat-Wind (Shu Feng) and Food Stagnation (Shi Zhi). Consequently, the high fever intensified, accompanied by severe irritability and thirst, while vomiting and diarrhea became more frequent. Upon my arrival, Mr. Fang described the symptoms and the general principles of his medication. I examined the child and observed body heat with cold limbs, a crimson tongue with yellow coating, and restlessness. I said to Mr. Fang: "This syndrome belongs to Summerheat pathogen disturbing the Stomach, with Heat Qi rushing upward, hence the thirst for drinking, vomiting, and diarrhea. The Classics state: 'All rebellious upward rushings belong to Fire.' 'Sudden violent diarrhea with tenesmus belongs to Heat.' However, infants have fragile constitutions; intense Summerheat pathogen easily agitates Liver Wind. Mr. Xu Xuanzhi discussed Summerheat-Wind convulsive conditions, stating that convulsions occurring after vomiting and diarrhea are termed Slow Convulsion (Man Jing). Treatment is difficult. Moreover, since vomiting exceeds diarrhea, excessive vomiting damages the Stomach, preventing the distribution of Body Fluids (Jin Ye), which explains why previous medications failed. Vitality must become active again to reverse the situation. His prescription, Huangtu Daohua Tang (Yellow Earth and Rice Flower Decoction), is excellent. Whenever I encounter such cases, I imitate his method, and treatment is often effective. Therefore, I prescribed Huangtu (Huangtu, Yellow Earth), Daohua (Daohua, Rice Flower), Shashen (Glehniae Radix), Fuling (Poria), Gancao (Licorice Root), Banxia (Pinelliae Rhizoma), Wumei (Mume Fructus), Mugua (Chaenomelis Fructus), and Biandouye (Dolichos Lablab Leaf). Due to the severe heat, I added Huanglian (Coptidis Rhizoma). One dose yielded results. In summer, when children contract Summerheat pathogen presenting with heat-thirst and vomiting, making formulas containing aromatic damp-resolving herbs like Xiangsha Zhuchu unsuitable, this formula ensures peace and recovery.
An Bo’s commentary: Carefully analyzing the prescription logic, Summerheat pathogen invading the Stomach causes vomiting. Huangtu and Daohua serve as the Sovereign drugs (Jun Yao); they are warm but not drying, fragrant but not dispersing, thereby stabilizing the Stomach Qi. Excessive vomiting injures fluids; Shashen, Fuling, Gancao, and Banxia serve as Minister drugs (Chen Yao); they nourish without being cloying and assist without causing stagnation, allowing the Middle Jiao to rotate and transform effectively, so that vomiting and diarrhea resolve spontaneously without specific intervention. Thus, they act as Ministers because when Earth Qi is weak, it invites external pathogens, leading to Wood (which controls Earth) to insult it—a fact known without saying. Therefore, Wumei and Mugua are used as Assistant drugs (Zuo Yao) to preemptively subdue Wood, thereby calming the Spleen and Stomach and suppressing the Liver. However, since the blazing Summerheat pathogen has not yet been expelled, Biandouye is used as Envoy drug (Shi Yao). It acquires the Metal Qi earliest, dispelling Summerheat and pacifying Wood. This is likely the reason."