二阳并病，太阳初得病时，发其汗，汗先出，复不彻，因转属阳明，续自微汗出，不恶寒。若太阳证不罢，不可下，
下之为逆，如此者，可小发其汗。设面色缘缘正赤者，阳气怫郁在表，当解之，熏之。若发汗不大彻，不足言，阳气怫
郁不得越。当汗而不汗，其人躁烦，不知痛处，乍在腹中，乍在四肢，按之不可得，其人短气但坐，汗出而不彻故也。
更发其汗即愈。何以知其汗不彻？脉涩故以知之。未持脉时，病患叉手自冒心。师因教试令咳而不即咳者，此必两耳无
所闻也。所以然者，重发其汗，虚故也。发汗后，饮水多者必喘。以水灌之亦喘。发汗后，水药不得入口为逆。若更发
其汗，必吐下不止。阳明病，本自汗出，医复重发其汗，病已瘥，其人微烦，不了了，此大便坚也，以亡津液，胃中干
燥，故令其坚。当问小便日几行，若本日三、四行，今日再行者，必知大便不久出，今为小便数少，津液当还入胃中，
故知必当大便也。发汗多，又复发其汗，此为亡阳。皆谵语、脉短者，死；脉自和者，不死。
伤寒发其汗，身目为黄，所以然者，寒湿相抟在里不解故也。病患有寒，复发其汗，胃中冷，必吐蛔。
太阳病，发其汗，遂漏而不止，其人恶风，小便难，四肢微急，难以屈伸，属桂枝加附子汤。服桂枝汤，大汗出，
若脉但洪大，与桂枝汤。若其形如疟，一日再三发，汗出便解，属桂枝二麻黄一汤。服桂枝汤，大汗出，大烦渴不解，
若脉洪大，属白虎汤。
伤寒，脉浮，自汗出，小便数，颇复（仲景颇复字作心烦）微恶寒，而脚挛急，反与桂枝欲攻其表，得之便厥，咽
干，烦躁，吐逆，当作甘草干姜汤，以复其阳。厥愈足温，更作芍药甘草汤与之，其脚即伸。而胃气不和，谵语，可与
承气汤。重发其汗，复加烧针者，属四逆汤。
伤寒，发汗已解，半日许复烦，其脉浮数，可复发其汗，属桂枝汤。
发汗后，身体疼痛，其脉沉迟，属桂枝加芍药生姜人参汤。
发汗后，不可更行桂枝汤，汗出而喘，无大热，可以麻黄杏子甘草石膏汤。
发汗过多以后，其人叉手自冒心，心下悸，而欲得按之，属桂枝甘草汤。
发汗后，其人脐下悸，欲作贲豚，属茯苓桂枝甘草大枣汤。
发汗后，腹胀满，属浓朴生姜半夏甘草人参汤。发其汗不解，而反恶寒者，虚故也，属芍药甘草附子汤。不恶寒，
但热者，实也，当和其胃气，宜小承气汤。
太阳病，发汗，若大汗出，胃中燥，烦不得眠，其人欲饮水，当稍饮之，令胃中和则愈。
发汗已，脉浮而数，复烦渴者，属五苓散。
伤寒，汗出而渴，属五苓散证；不渴，属茯苓甘草汤。
太阳病，发其汗，汗出不解，其人发热，心下悸，头眩，身 而动，振振欲擗地，属真武汤。
伤寒，汗出，解之后，胃中不和，心下痞坚，干噫食臭，胁下有水气，腹中雷鸣而利，属生姜泻心汤。
伤寒发热，汗出不解后，心中痞坚，呕而下利，属大柴胡汤。
太阳病三日，发其汗不解，蒸蒸发热者，属于胃也，属承气汤。
大汗出，热不去，内拘急，四肢疼，下利，厥逆而恶寒，属四逆汤。
发汗多，亡阳谵语者，不可下，与柴胡桂枝汤，和其荣卫，以通津液，后自愈。
二阳并病，指太阳病与阳明病同时存在。在太阳病初起时，医生使用发汗法治疗，汗液先排出，但未能透彻，因此病邪转属阳明，患者出现持续微汗出、不再怕冷的症状。如果太阳表证仍未解除，不可使用攻下法，误用攻下属于逆治；在这种情况下，可以采用小剂量的发汗法。
假如患者面色通红，这是阳气郁结在体表所致，应当采用解表的方法，或用熏蒸疗法。如果发汗不够彻底，阳气郁结不能宣散，患者会出现躁动烦闷，不知道疼痛的具体位置，有时在腹部，有时在四肢，按压也找不到痛点，患者呼吸短促只能坐卧，这是因为汗出不透的缘故。再次发汗即可痊愈。如何知道汗出不透呢？通过脉象涩滞可以得知。
在未诊脉时，看到患者双手交叉护住心口。医生让患者试着咳嗽，但患者没有立即咳嗽，这必定是因为双耳听力丧失。之所以这样，是因为过度发汗导致正气虚弱。
发汗后，饮水过多必然导致气喘。用水浇洗身体也会导致气喘。发汗后，水药无法入口属于逆治。如果再次发汗，必然导致呕吐和下利不止。
阳明病，本来就有自汗出的症状，医生又重复发汗，虽然病势已缓解，但患者仍有轻微烦闷，神志不清爽，这是因为大便坚硬。这是由于津液耗伤，胃中干燥，所以导致大便坚硬。此时应询问患者每天小便几次，如果平时每天三到四次，今天只排了两次，必定知道大便不久将排出。现在小便次数减少，津液应当回流进入胃中，所以知道大便即将通畅。
发汗过多，又再次发汗，这会导致亡阳（阳气极度虚脱）。如果出现谵语（胡言乱语）且脉象短促的，预后不良，主死；如果脉象调和正常的，则不死。
伤寒病，经过发汗治疗后，身体和眼睛发黄，这是因为寒湿之邪搏结在体内不得解散的缘故。患者本有寒症，医生又重复发汗，导致胃中寒冷，必然会出现吐蛔虫的现象。
太阳病，经过发汗治疗后，汗漏出不止，患者怕风，小便困难，四肢轻微拘急，难以屈伸，这属于桂枝加附子汤证。服用桂枝汤后，大汗出，如果脉象仅表现为洪大，仍给予桂枝汤。如果患者症状像疟疾一样，一天发作两三次，出汗后症状缓解，这属于桂枝二麻黄一汤证。
服用桂枝汤后，大汗出，出现严重烦渴不解，如果脉象洪大，属于白虎汤证。
伤寒病，脉浮，自汗出，小便频数，心烦（仲景原文作“心烦”），轻微怕冷，脚部挛急，医生反而给予桂枝汤想要攻表，服药后出现手足厥冷，咽干，烦躁，呕吐逆气，此时应当用甘草干姜汤，以恢复其阳气。待手足厥冷好转、足部温暖后，再给予芍药甘草汤，其脚部即可伸展。如果胃气不和，出现谵语，可给予承气汤。若因重发其汗，又加上烧针治疗，属于四逆汤证。
伤寒，发汗后病情已解，半天左右又出现烦闷，脉象浮数，可以再次发汗，属于桂枝汤证。
发汗后，身体疼痛，脉象沉迟，属于桂枝加芍药生姜人参汤证。
发汗后，不可再用桂枝汤，若出现汗出而喘，无大热，可以使用麻黄杏子甘草石膏汤。
发汗过多后，患者双手交叉护住心口，心下部悸动，想要按压缓解，属于桂枝甘草汤证。
发汗后，患者脐下悸动，感觉快要发生奔豚（气从少腹上冲心胸），属于茯苓桂枝甘草大枣汤证。
发汗后，出现腹胀满，属于浓朴生姜半夏甘草人参汤证。发汗后病未解，反而怕冷的，是虚证，属于芍药甘草附子汤证。不怕冷，只有发热的，是实证，应当调和胃气，宜用小承气汤。
太阳病，发汗后，如果大汗出，导致胃中干燥，烦闷不得安眠，患者想喝水，应当少量多次地喂水，使胃气调和即可痊愈。
伤寒，汗出且口渴，属于五苓散证；如果不口渴，属于茯苓甘草汤证。
太阳病，发汗后，汗出而病不解，患者发热，心下悸动，头晕，身体肌肉跳动，震颤欲倒在地上，属于真武汤证。
伤寒，汗出病解之后，胃中不和，心下部痞塞坚硬，干呕伴有食物腐臭气味，胁下有积水气，肠鸣腹泻，属于生姜泻心汤证。
伤寒发热，汗出后病未解，心中痞塞坚硬，呕吐且腹泻，属于大柴胡汤证。
太阳病三天，发汗后病未解，出现蒸蒸发热，病位在胃，属于承气汤证。
Two-Yang concurrent disease refers to the simultaneous existence of Taiyang (Greater Yang) and Yangming (Yang Brightness) diseases. When Taiyang disease is in its initial stage, if diaphoresis (sweating therapy) is applied, and sweat is released initially but not thoroughly, the pathogen may transfer to Yangming. The patient will present with continuous slight sweating and aversion to cold ceases. If the Taiyang syndrome has not subsided, purgation (downward-draining method) is contraindicated; using it would be an incorrect treatment. In such cases, a mild diaphoretic method should be employed.
If the patient's face appears persistently red, this indicates Yang Qi stagnation at the exterior. It should be treated by resolving the exterior or using fumigation therapy. If diaphoresis is insufficient, Yang Qi stagnates and cannot vent outward. The patient becomes restless and irritable, unable to locate specific pain points, which may shift between the abdomen and limbs, and cannot be found upon palpation. The patient experiences shortness of breath and can only sit, due to incomplete sweating. Re-administering diaphoresis will lead to recovery. How do we know the sweat was incomplete? This is known through a choppy pulse (Se Mai).
Before taking the pulse, observe the patient crossing their hands over the heart region. If the physician instructs the patient to cough and they do not respond immediately, it indicates bilateral hearing loss. This occurs because excessive diaphoresis has caused deficiency of healthy Qi.
After diaphoresis, drinking excessive amounts of water will inevitably cause wheezing. Washing the body with water will also cause wheezing. After diaphoresis, if fluids and medicine cannot be retained in the mouth, it is considered a counter-productive state. If diaphoresis is repeated, it will inevitably lead to incessant vomiting and diarrhea.
In Yangming disease, spontaneous sweating is common. If the physician repeats diaphoresis, although the illness may seem alleviated, the patient remains slightly irritable and mentally unclear due to hard stool. This results from fluid exhaustion and dryness in the Stomach. One should inquire about the frequency of urination. If the patient usually urinates three to four times a day but only twice today, it indicates that stool will soon pass. Since urinary frequency has decreased, fluids are returning to the Stomach, indicating bowel movement is imminent.
Excessive diaphoresis followed by repeated diaphoresis leads to collapse of Yang (Wang Yang). If delirium (Chan Yu) and a short pulse occur, the prognosis is fatal; if the pulse is harmonious, the patient will survive.
In Shanghan (Cold Damage), after diaphoresis, jaundice of the body and eyes may appear because cold-dampness combines internally and fails to resolve. If a patient with cold symptoms undergoes repeated diaphoresis, causing coldness in the Stomach, vomiting of roundworms will occur.
In Taiyang disease, if diaphoresis causes leakage of sweat that does not stop, accompanied by aversion to wind, difficulty in urination, slight stiffness in the four limbs making flexion and extension difficult, this belongs to the Guizhi Jia Fuzi Tang (Cinnamon Twig Decoction plus Aconite Root) pattern.
After taking Guizhi Tang, if heavy sweating occurs and the pulse is merely surging and large (Hong Da), continue administering Guizhi Tang. If the condition resembles malaria, occurring two or three times a day, resolving with sweating, this belongs to the Guizhi Er Mahuang Yi Tang (Cinnamon Twig Decoction twice, Ephedra Decoction once) pattern.
After taking Guizhi Tang, if heavy sweating leads to severe irritability and unquenchable thirst, and the pulse is surging and large, this belongs to the Baihu Tang (White Tiger Decoction) pattern.
In Shanghan, if the pulse is floating, there is spontaneous sweating, frequent urination, mental restlessness (Fan Xin), slight aversion to cold, and cramping in the feet, administering Guizhi Tang to attack the exterior is erroneous. This will result in cold extremities, dry throat, irritability, and vomiting. One should administer Gancao Ganjiang Tang (Licorice and Dried Ginger Decoction) to restore Yang. Once extremities warm up, administer Shaoyao Gancao Tang (Peony and Licorice Decoction) to extend the legs. If Stomach Qi disharmony causes delirium, Chengqi Tang (Purgative Decoction) may be given. If heavy diaphoresis is combined with moxibustion on needles, this belongs to the Sini Tang (Frigid Extremities Decoction) pattern.
In Shanghan, if the condition resolves after diaphoresis but returns with irritability after half a day, and the pulse is floating and rapid, diaphoresis can be repeated using Guizhi Tang.
After diaphoresis, if body pain persists with a deep and slow pulse, this belongs to the Guizhi Jia Shaoyao Shengjiang Renshen Tang (Cinnamon Twig Decoction plus Peony, Fresh Ginger, and Ginseng) pattern.
After diaphoresis, Guizhi Tang is contraindicated. If sweating and wheezing occur without significant heat, Mahuang Xingren Gancao Shigao Tang (Ephedra, Apricot Kernel, Licorice, and Gypsum Decoction) should be used.
After excessive diaphoresis, if the patient crosses hands over the heart, experiences palpitations in the epigastrium, and desires pressure, this belongs to the Guizhi Gancao Tang (Cinnamon Twig and Licorice Decoction) pattern.
After diaphoresis, if the patient feels palpitations below the navel and sensation of Ben Tun (Qi rushing upward like a piglet), this belongs to the Fuling Guizhi Gancao Dazao Tang (Poria, Cinnamon Twig, Licorice, and Jujube Decoction) pattern.
After diaphoresis, if abdominal fullness occurs, this belongs to the Nongpo Shengjiang Banxia Gancao Renshen Tang (Magnolia Bark, Fresh Ginger, Pinellia, Licorice, and Ginseng Decoction) pattern. If the disease does not resolve after diaphoresis and aversion to cold increases, it is a deficiency pattern belonging to Shaoyao Gancao Fuzi Tang (Peony, Licorice, and Aconite Root Decoction). If there is no aversion to cold but only heat, it is an excess pattern; one should harmonize Stomach Qi using Xiao Chengqi Tang (Minor Purgative Decoction).
In Taiyang disease, if heavy sweating causes dryness in the Stomach, irritability, insomnia, and desire for water, small sips of water should be given until Stomach Qi harmonizes and recovery occurs.
After diaphoresis, if the pulse is floating and rapid, accompanied by irritability and thirst, this belongs to the Wuling San (Five-Ingredient Powder with Poria) pattern.
In Shanghan, if sweating is accompanied by thirst, it belongs to the Wuling San pattern; if there is no thirst, it belongs to the Fuling Gancao Tang (Poria and Licorice Decoction) pattern.
In Taiyang disease, if sweating does not resolve the disease, and the patient presents with fever, palpitations, dizziness, muscle twitching, and trembling as if falling to the ground, this belongs to the Zhenwu Tang (True Warrior Decoction) pattern.
After Shanghan resolves following sweating, if Stomach Qi is disharmonious, presenting with epigastric fullness and hardness, dry belching with food odor, water accumulation under the ribs, borborygmus, and diarrhea, this belongs to the Shengjiang Xiexin Tang (Fresh Ginger Drain the Epigastrium Decoction) pattern.
In Shanghan, if fever persists after sweating, with epigastric fullness, vomiting, and diarrhea, this belongs to the Da Chaihu Tang (Major Bupleurum Decoction) pattern.
In Taiyang disease, if after three days of treatment, sweating fails to resolve the condition, and steaming heat occurs, the pathology is in the Stomach, belonging to Chengqi Tang patterns.
If heavy sweating leaves heat unresolved, accompanied by internal cramping, limb pain, diarrhea, cold extremities, and aversion to cold, this belongs to Sini Tang.
If excessive diaphoresis leads to Yang collapse and delirium, purgation is contraindicated. Instead, Chaihu Guizhi Tang (Bupleurum and Cinnamon Twig Decoction) should be administered to harmonize Ying and Wei (Nutritive and Defensive levels) and promote fluid circulation, leading to natural recovery.