汤氏云∶小儿热泻者，大便黄而赤，或有沫，乃脏中有积，或因乳母好饮酒，或嗜热物，或生下伤湿蕴热，
医者不明，但用豆蔻、诃子等药服之，如水浇石，既不识其证，故不辨其冷热，用药又不得其法，焉能取效。此
证当以小便赤少，口
干烦躁为验，治法当用钱氏白术散渴去木香用之，五苓散（惊（去桂亦可服。其热甚者四逆散，大柴胡汤（俱伤寒）去
大
黄，服之殊验也。更用黄连丸（疳）等剂，亦佳。调中汤（痢）去大黄，加黄连枳壳。如夹热而泻，太阳与少阳
合病自下利者，与黄芩汤，呕者加半夏。又有挟热泻痢而小便秘涩赤甚者，加减四顺清凉饮（里热）治之，即止。
薛氏云∶右腮色赤，饮冷，胃经实热也，用泻黄散（脾）。恶冷喜热，胃经虚热也，用白术散（渴）。右腮及额间俱赤，
心
脾翕热也，用泻黄散加炒黑黄连。若左颊右腮俱赤，肝火乘脾土也，用四君子汤（吐泻）加柴胡。若儿暴伤乳食，用保
和
丸（宿食）。乳母尤当忌浓味，节饮食，若乳母停食所伤，致儿吐泻等病，当治其母。大抵始病而热者，邪气胜则实也，
终变为寒者，真气夺则虚也，久病而热者，内真寒而外假热也，久泻元气虚寒，当参前证治之。
黄芩汤 治下利而头痛胸满，口苦咽干，或往来寒热而呕，其脉浮大而弦者，或协热而利者。
黄芩（一两半） 芍药 甘草（炙。各一两）
上锉散。每服三钱，枣子一个，水一盏，煎七分，去滓温服。呕者，加半夏一
两二钱半，生姜煎。
〔张涣〕清胃散 治挟热泄利。
川楝子 黄柏（微焙炙） 当归（洗，焙干） 地榆（炙） 黄连（去须炒。各半两）
上件捣，罗为细末。每服一钱，水八分，煎至四分，去滓温服，乳食前。
香连丸
黄连（姜汁拌炒，二两） 木香（煨，半两）
上为末。陈米饭丸，绿豆大。米饮下一二十丸，亦可调六一散。
Mr. Tang stated: In pediatric hot diarrhea (Hot Diarrhea), the stool is yellow with a reddish hue, sometimes containing froth. This condition arises from accumulation within the zang-fu organs. Causes may include the nursing mother's preference for alcohol or heat-inducing foods, or the infant contracting dampness at birth which transforms into heat. If physicians fail to understand the pathology and merely administer cardamom (Doukou) and chebula (Hezi), it is as ineffective as pouring water on stone. Since they do not recognize the syndrome, they cannot differentiate between cold and heat, and their therapeutic methods are inappropriate; how can they expect efficacy? This syndrome should be verified by signs such as scanty dark urine, dry mouth, and irritability. The treatment should employ Qian Yi's Baizhu San (Atractylodes Macrocephala Decoction) with Xiangru removed. Alternatively, Wuling San (Five-Ingredient Poria Decoction) may be used (if accompanied by fright, Guizhi may be omitted). For severe heat, Sini San (Frigid Extremities Powder) or Daxiehu Tang (Major Bupleurum Decoction) [both from Shanghan Lun] with Dahuang removed are effective. Additionally, Huanglian Wan (Coptis Pill) [for Gan malnutrition] is also suitable. Tiaozhong Tang (Regulate Middle Decoction) [for dysentery] with Dahuang removed, plus Huanglian and Zhike, is indicated. For diarrhea complicated by heat, specifically Taiyang and Shaoyang combined disease presenting with spontaneous diarrhea, Huangqin Tang (Scutellaria Decoction) should be given; if vomiting occurs, Banxia is added. For dysentery with heat complication characterized by difficult, dark red urination, Jiajian Sishun Qingliang Yin (Modified Four-Compliance Cooling Drink) [for interior heat] is used to stop the symptoms.
Mr. Xue stated: Redness of the right cheek with a desire for cold drinks indicates excess heat in the Stomach meridian, treated with Xiehuang San (Drain Yellow Powder) [for Spleen heat]. Aversion to cold and preference for warmth indicates deficiency heat in the Stomach meridian, treated with Baizhu San [for thirst]. Redness of both the right cheek and forehead indicates heat in the Heart and Spleen, treated with Xiehuang San plus stir-fried black Huanglian. Redness of both the left cheek and right cheek indicates Liver fire invading the Spleen earth, treated with Sijunzi Tang (Four Gentlemen Decoction) [for vomiting and diarrhea] plus Chaihu. If an infant suffers sudden injury from milk or food, Baohe Wan (Preserve Harmony Pill) [for retained food] is used. The nursing mother must strictly avoid rich flavors and regulate her diet. If the mother suffers from food stagnation causing infant vomiting and diarrhea, the mother should be treated. Generally, initial illness with heat indicates excess due to pathogenic qi dominance; eventual transformation into cold indicates deficiency due to depletion of true qi; prolonged illness with heat indicates true interior cold with false exterior heat. Prolonged diarrhea leading to deficiency-cold of Yuan Qi should be treated according to the aforementioned syndromes.
Huangqin Tang (Scutellaria Decoction): Treats diarrhea accompanied by headache, chest fullness, bitter taste, dry throat, alternating chills and fever with vomiting, floating-large-wiry pulse, or heat-complicated diarrhea.
Ingredients: Huangqin (1.5 liang), Shaoyao, Gancao (stir-fried with honey, 1 liang each).
Preparation: Coarsely crush into powder. Take 3 qian per dose with one jujube, decoct in 1 sheng of water until 0.7 sheng remains, strain, and take warm. For vomiting, add Banxia (1.25 liang) and Shengjiang.
[Zhang Huan] Qingwei San (Clear Stomach Powder): Treats diarrhea with heat complication.
Ingredients: Chuanniannzi, Huangbai (lightly roasted), Danggui (washed, dried), Diyü (roasted), Huanglian (deprived of whiskers, stir-fried, 0.5 liang each).
Preparation: Pound and sieve into fine powder. Take 1 qian per dose, decoct in 0.8 sheng of water until 0.4 sheng remains, strain, and take warm before feeding.
Xianglian Wan (Fragrant Coptis Pill)
Ingredients: Huanglian (stir-fried with ginger juice, 2 liang), Muxiang (roasted, 0.5 liang).
Preparation: Grind into powder. Form pills with old rice paste, size of mung beans. Administer 10-20 pills with rice water, or mix with Liuyi San.