经曰∶舌上如苔者，以丹田有热，胸中有寒。谓寒气初传入里也。舌乃心之苗，法应南方火，
色本红，乃邪气在表，舌则无苔。又邪气在里，津液结搏，则舌上生苔而滑。热气渐深，其舌苔燥
而涩。热聚于胃，其舌苔为之黄矣。若间黑色，则热已深，病已极笃。经曰∶凡热病，口干舌黑者
死。乃肾水刑于心火也。
脉阴阳俱紧，口中气出，唇口干燥，蜷卧足冷，鼻中涕出，舌上滑苔者，
勿妄治也。到七八日以来，其人微发热，手足温者，此为欲解。或七八日以上，反大发热
者，此为难治。设使恶寒者，必欲呕也，小柴胡汤加生姜。腹内痛者，必欲利也，理中汤。
太阳误下，胃中空虚，客热动膈，懊 ，舌苔，栀子豉汤。
少阳病，胁下硬满，不大便而呕，舌上白苔，小柴胡汤。
阳明病，舌上生苔，五苓散；舌黄者，当下之。《金匮要略》曰∶舌黄未下者，下之黄自去。
脏结者，脏气秘结而不流布也。一息不运，机缄穷，一毫不续，霄壤判，脏其可结乎？外证如
结胸状，但欲食如故，时时下利为异耳。其脉寸浮关沉而紧，阴筋引脐腹俱痛是也。病患胁下素有
痞，连脏结，无阳证，不往来寒热，其人反静，舌上苔滑者，不可攻也，刺关元，灸之亦可，仍与
小柴胡汤加生姜。
医经中说：舌面上好像有苔，这是因为下焦（丹田）有热，而胸中有寒。这是指寒气刚刚传入体内的情况。舌是心的外候，在五行中对应南方的火，其本色应当是红色的；如果邪气还在体表，舌头上就不会有苔。如果邪气已经入里，导致津液凝结阻滞，舌面上就会生出滑腻的苔。随着热气逐渐加深，舌苔会变得干燥且涩滞。如果热邪聚集在胃中，舌苔就会变成黄色。如果出现黑色，说明热邪已经深入，病情极其危重。医经说：凡是热病，出现口干且舌色发黑的，预后不良，属于死证。这是由于肾水克制心火所致。
脉象寸关尺三部都呈现紧象，口中呼出之气偏热，嘴唇和口腔干燥，身体蜷缩而卧，脚部寒冷，鼻流清涕，舌面有滑苔的，不要随意乱治。等到七八天后，病人只有轻微发热，手足温暖，这是病情将要解除的表现。如果过了七八天，反而出现高热，这就难以治疗。如果伴有恶寒症状，必定想呕吐，可用小柴胡汤加生姜。如果腹部疼痛，必定想腹泻，可用理中汤。
太阳病误用攻下法，导致胃中空虚，客居的热邪扰动膈部，出现心中烦闷不安、舌上有苔的症状，用栀子豉汤治疗。
少阳病，胁下硬满，大便不通且呕吐，舌上有白苔，用小柴胡汤治疗。
阳明病，舌上生苔，用五苓散治疗；舌苔黄的，应当用泻下法。《金匮要略》说：舌苔黄而未使用泻下法的，使用后黄苔自然去除。
脏结证，是指脏腑之气闭塞凝结而不能流通运行。一旦气息停止运转，生机就穷尽了；稍有不续，生死就像霄壤之别，脏腑怎么可以凝结呢？外在证候像结胸证，但饮食如常，时常腹泻，这是与结胸证的不同之处。其脉象寸部浮、关部沉而紧，阴筋牵引脐腹俱痛就是这种证候。如果病人胁下向来有痞块，连及脏结，没有阳证表现，不往来寒热，病人反而安静，舌苔滑润的，不可用攻下法，可针刺关元穴，艾灸也可以，同时给予小柴胡汤加生姜。
The Classic states: "When there appears to be a coating on the tongue, it is because there is heat in the Dantian (lower abdomen) and cold in the chest." This refers to the initial transmission of cold pathogenic factors into the interior. The tongue is the sprout of the Heart; according to the Five Elements, it corresponds to the Fire of the South, and its natural color should be red. When the pathogenic factor is at the exterior, there is no coating on the tongue. However, when the pathogenic factor enters the interior, fluid metabolism is obstructed and condensed, resulting in a slippery coating on the tongue. As the heat deepens, the coating becomes dry and rough. If heat accumulates in the Stomach, the coating turns yellow. If black appears, the heat has penetrated deeply, and the disease is extremely critical. The Classic states: "In all febrile diseases, if the mouth is dry and the tongue is black, death ensues." This is due to Kidney Water overcoming Heart Fire.
If the pulse is tight in all three positions (Cun, Guan, Chi), breath from the mouth feels warm, lips and mouth are dry, the body curls up while lying down, feet are cold, nasal discharge occurs, and there is a slippery coating on the tongue, do not treat rashly. After seven or eight days, if the patient has only slight fever and warm hands and feet, this indicates the condition is about to resolve. If, after seven or eight days, there is instead high fever, this is difficult to treat. If chills are present, vomiting will likely occur; use Xiao Chai Hu Tang (Minor Bupleurum Decoction) with added Sheng Jiang (Fresh Ginger). If abdominal pain is present, diarrhea will likely occur; use Li Zhong Tang (Regulate the Middle Decoction).
If Taiyang disease was incorrectly treated with purgation, the Stomach becomes empty, and exogenous heat disturbs the Diaphragm, causing mental restlessness (Ao Nao) and a tongue coating, treat with Zhi Zi Chi Tang (Gardenia and Fermented Soybean Decoction).
In Shaoyang disease, with hardness and fullness under the hypochondrium, constipation accompanied by vomiting, and a white coating on the tongue, use Xiao Chai Hu Tang (Minor Bupleurum Decoction).
In Yangming disease, if a coating appears on the tongue, use Wu Ling San (Five-Ingredient Powder with Poria); if the coating is yellow, apply purgation. The *Jin Gui Yao Lue* states: "If the tongue coating is yellow and purgation has not yet been used, after purgation the yellow coating will naturally disappear."
Zang Jie (Organ Knotting) refers to the blockage and condensation of Zang organ Qi, preventing its circulation. Once respiration ceases, vital mechanisms exhaust; without even a moment's continuity, life and death are separated as widely as heaven and earth; how can the Zang organs be allowed to knot? The external manifestations resemble Jie Xiong (Chest Binding), but the difference lies in the patient maintaining normal appetite and experiencing frequent diarrhea. The pulse is floating at Cun, sunken and tight at Guan, with Yin sinews pulling and causing pain in the umbilical and abdominal regions. If the patient has long had a mass under the hypochondrium that extends to Zang Jie, lacks Yang syndrome signs, does not experience alternating chills and fever, remains quiet, and has a slippery tongue coating, attack with purgation is contraindicated. One may puncture Guan Yuan (CV-4) or apply moxibustion, and simultaneously administer Xiao Chai Hu Tang (Minor Bupleurum Decoction) with added Sheng Jiang (Fresh Ginger).