五经热症病原分，热气熏蒸上冲心，谵语妄言神志乱，犀角黄连可定神。热蒸于肝，则搐搦如惊，治
宜天麻、羌活、胆星。热蒸于脾，则腹胀，渴饮，目肿，大便闭，宜投枳壳、山栀、大
黄。热蒸于肺，喘嗽鼻涕，兜铃、贝母、桑皮。热蒸于肾，玄参、知母。
瘟毒发疹者，由小儿感冒风邪，藏蓄于肌肉之间，阳气发动，潜形于皮肤之外，一年之中，屡受不正之
气，而出于两腋之下者，气之道路也。瘟邪随气道而出者，肺之瘟毒发疹也，治宜清肺饮主之。
疹后癖积，麻既回，饮食不谨，惊唬不忌，以致积久成病而痰气包裹，遂成癖疾，故令小儿面黄肌瘦，
项细脚软，腹如胀鼓，身热口疮，治宜痞气丸、褐子丸，二药消之。
疹后遍身糜烂者，发在 子已收，饮水过多，嗜食不节，致使食伤脾胃，至于肌肉、背心、两胁间发出
小水泡，其形光明，此水晶 也。一日之间变成浆泡，如汤沸然，而溃烂成糜，法当胃苓丸治之，外用白云散敷之。
后痧疳者，乃脾胃虚热上炎，熏蒸于口，涎流清水，是为口疮，口疮日久，遂流血水，
血聚成脓，黑烂臭秽，是为痧疳，治宜丙金散、HT 散敷之。
回后阴囊无故赤肿，明亮如灯笼，痛不可忍，此乃余毒邪热流注于膀胱，宜用导赤散治之。
疹后疟疾，乃肺腑娇嫩，洗之太早，湿热水气客于皮肤，卫气不守，邪气潜乘，阴阳交争，虚实更作。
阴胜阳则内外皆寒，阳胜阴则内外皆热，以截疟丹治之。（方见《金镜录》。）
五经热症的病因病机各不相同，热气熏蒸上冲于心，导致谵语妄言、神志混乱，可用犀角和黄连来安定神志。热气熏蒸于肝，则出现抽搐痉挛如同惊风的症状，治疗适宜使用天麻、羌活、胆南星。热气熏蒸于脾，则出现腹胀、口渴饮水、眼睑浮肿、大便闭塞，适宜投用枳壳、山栀、大黄。热气熏蒸于肺，出现气喘咳嗽、流鼻涕，（宜用）兜铃、贝母、桑白皮。热气熏蒸于肾，（宜用）玄参、知母。
瘟毒引发出疹的，是由于小儿感冒风邪，邪气潜伏蓄积在肌肉之间，阳气发动，潜藏显现于皮肤之外，一年之中多次感受不正之气，而发于两腋之下的，是气运行的道路。瘟邪顺着气道而出的，是肺部的瘟毒引发出疹，治疗适宜以清肺饮为主方。
出疹后形成的癖积，麻疹既已消退，因饮食不谨慎，受惊吓且不加忌讳，以致积久成病，痰气包裹，遂形成癖疾，因此导致小儿面色黄、肌肉消瘦，颈部细、脚软，腹部像胀鼓一样，身体发热、口舌生疮，治疗适宜用痞气丸、褐子丸，这两种药来消除它。
出疹后全身糜烂的，发生在疹子收没之后，因饮水过多，嗜食无节制，致使饮食损伤脾胃，进而影响到肌肉、背心、两胁间发出小水泡，其形状光亮，这是水晶疱。一天之内变成浆泡，像开水沸腾一样，然后溃烂成糜烂状，治法应当用胃苓丸治疗，外用白云散敷贴。
后发痧疳的，乃是脾胃虚热上炎，熏蒸于口腔，唾液流出清水，这就是口疮，口疮日久，遂流血水，血液聚集化脓，黑色腐烂、气味臭秽，这就是痧疳，治疗适宜用丙金散、HT散敷贴。
麻疹回退后阴囊无故红肿，明亮如灯笼，疼痛难以忍受，这是余毒邪热流注于膀胱，适宜用导赤散治疗。
出疹后患疟疾的，乃是因为肺腑娇嫩，洗澡太早，湿热水气客居于皮肤，卫气不能固守，邪气暗中乘虚而入，阴阳相互交争，虚实交替发作。阴胜阳则内外皆寒，阳胜阴则内外皆热，用截疟丹治疗。（方剂见《金镜录》。）
The etiology and pathogenesis of heat syndromes in the five meridians vary. When hot qi steams upward and rushes to the Heart, it causes delirious speech,妄言 (delusional talk), and chaotic spirit/mind; Xijiao (Rhinoceros Horn) and Huanglian (Coptis Rhizome) can stabilize the spirit. When heat steams the Liver, it causes convulsions and spasms resembling wind-stroke; treatment should employ Tianma (Gastrodia Rhizome), Qianghuo (Notopterygium Rhizome), and Dansheng (Arisaema Cum Bile). When heat steams the Spleen, it causes abdominal distension, thirst with desire to drink, eyelid edema, and constipation; one should administer Zhike (Aurantii Fructus), Shanzhi (Gardeniae Fructus), and Dahuang (Rhei Radix et Rhizoma). When heat steams the Lung, causing wheezing, coughing, and nasal discharge, use Dailing (Campanulae Radix), Beimu (Fritillariae Bulbus), and Sangbai (Mori Cortex). When heat steams the Kidney, use Xuanshen (Scrophulariae Radix) and Zhimu (Anemarrhenae Rhizoma).
Eruptions caused by plague-toxin arise when children contract wind-pathogens, which hide and accumulate between the muscles. When Yang qi activates, the pathogens surface on the skin. Throughout the year, repeated exposure to abnormal qi leads to eruptions emerging from the axillae, which are the pathways of Qi. When plague pathogens exit along these airways, it is lung plague-toxin causing eruptions; treatment should primarily utilize Qingfei Yin (Clear the Lungs Decoction).
Post-eruption pi-accumulation occurs after measles have receded. Due to unregulated diet and lack of caution regarding fright, long-standing accumulation transforms into disease, wrapped by phlegm and qi, thus forming pi-disease. This results in a yellowish complexion, emaciated muscles, a thin neck, weak legs, an abdomen distended like a drum, body heat, and mouth ulcers. Treatment should employ Piqi Wan (Pi-Qi Pill) and Hezi Wan (Hezi Pill) to eliminate the condition.
Generalized erosion post-eruption occurs after the rash has subsided. Excessive water intake and irregular diet injure the Spleen and Stomach, affecting the muscles, back, and hypochondrium, where small blisters emerge. These blisters are bright and clear, known as "crystal blisters." Within a day, they transform into pustules resembling boiling water, then ulcerate into erosions. The method requires treating with Weiling Wan (Weiling Pill) internally, and applying Baiyun San (White Cloud Powder) externally.
Subsequent shagan (measles-related gangrene) arises from deficiency-heat in the Spleen and Stomach flaming upward, steaming the mouth. Saliva flows as clear water, constituting mouth ulcers. If mouth ulcers persist for a long time, they bleed and exude fluid; blood accumulates and suppurates, becoming black, rotting, and foul-smelling, which is defined as shagan. Treatment should apply Bingjin San and HT San externally.
After the rash recedes, if the scrotum becomes spontaneously red and swollen, bright like a lantern, with unbearable pain, this is residual toxin and evil heat flowing into the Bladder. It should be treated with Daochi San (Guide Out Redness Powder).
Malaria following eruptions occurs because the Lung and Spleen are delicate. Bathing too early allows damp-heat and water qi to lodge in the skin. Wei qi fails to guard, allowing evil qi to invade secretly. Yin and Yang contend, alternating between excess and deficiency. When Yin prevails over Yang, there is cold inside and out; when Yang prevails over Yin, there is heat inside and out. Treat with Jienue Dan (Antimalarial Elixir). (Formula see *Jingjian Lu*.)