再有热传营血，其人素有瘀伤宿血在胸膈中，舌色必紫而暗，扪之潮湿，当加散血之品，如琥珀、丹参、
桃仁、丹皮等，否则瘀血与热相抟，阻遏正气，遂变如狂发狂之症。若紫而肿大者，乃酒毒冲心；紫而干晦者，
肾肝色泛也，难治。
舌若淡红无色，或干而色不荣者，乃是胃津伤而气无化液也。当用炙甘草汤，不可用寒凉药。
舌无苔而有如烟煤隐隐者，慎不可忽视。如口渴烦热而燥者，平时胃燥也，不可攻之，宜甘寒益胃；若不
渴肢寒而润者，乃挟阴病，宜甘温扶中。此何以故？外露而里无也。
舌黑而滑者，水来克火，为阴症，当温之；若见短缩，此肾气竭也，为难治。惟加人参、五味子，或救万
一。舌黑而干者，津枯火炽，急急泻南补北；若黑燥而中心浓者，土燥水竭，急以咸苦下之。
再温热之病，看舌之后，亦须验齿。齿为肾之余，龈为胃之络，热邪不燥胃津，必耗肾液，且二经之血，
走于此处。病深动血，结瓣于上，阳血色紫，紫如干漆；阴血色黄，黄如酱瓣。阳血若见，安胃为主；阴血若
见，救肾为要。然豆瓣色者多险，惟症尚不逆者犹可治，否则难治矣。此何故耶？盖阴下竭、阳上厥也。
齿若光燥如石者，胃热甚也，证见无汗恶寒，卫偏胜也，辛凉泄卫透汗为要。若如枯骨色者，肾液枯也，
为难治。若上半截润，水不上承而心火上炎也，急急清心救水，俟枯处转润为妥。
若齿垢如灰糕样者，胃气无权，津亡而湿浊用事，多死。初病齿缝流清血，痛者为胃火冲激；不痛者为龙
火内燔。齿焦无垢者死；齿焦有垢者，肾热胃劫也，当微下之，或玉女煎清胃救肾可也。
若切牙啮齿者，湿热化风，痉病；但切牙者，胃热气走其络也；切牙而脉证皆衰者，胃虚无谷以内荣也。
此何以故？虚则喜实也。舌本不缩而硬，牙关咬定难开者，此非风痰阻络，即欲作痉症。用酸物擦之即开，酸
走筋，木来泄土故也。
另外，如果热邪传入营分和血分，而患者平素胸膈中有瘀血停滞，舌色必定呈现紫色且暗淡，触摸时感觉潮湿，治疗时应当加入活血散瘀的药物，如琥珀、丹参、桃仁、牡丹皮等，否则瘀血与热邪相互搏结，阻碍正气运行，就会变成类似发狂的症状。如果舌色紫而且肿大，这是酒毒冲犯心脏的表现；如果舌色紫而且干枯晦暗，这是肾和肝的色泽外泛的表现，属于难治之症。
如果舌色淡红而无血色，或者干燥而没有光泽，这是胃中津液受损且气无法化生津液所致。此时应当使用炙甘草汤，不可使用寒凉性质的药物。
舌面上没有苔藓，却隐约可见像烟熏过的黑煤色，千万不要忽视。如果伴有口渴、烦躁发热且干燥，这是平时胃中燥热所致，不可用攻下法，适宜用甘寒药物滋养胃阴；如果不口渴、四肢发冷且舌面湿润，这是兼有阴证（寒证），适宜用甘温药物扶助中气。这是什么原因呢？这是因为病邪显露于外而内部阳气不足。
舌色黑且滑润的，是水气克制火气，属于阴证，应当采用温补疗法；如果舌体短缩，这是肾气枯竭的表现，属于难治之症。只有加入人参、五味子，或许还能挽救万一。舌色黑且干燥的，是津液枯竭、火势炽盛，必须紧急泻心火（南）补肾水（北）；如果舌黑且干燥，中心部分厚腻的，是土燥（胃热）导致水竭（肾阴亏），必须紧急用咸苦性质的药物攻下。
此外，温热病在观察舌象之后，还必须检验牙齿。牙齿是肾脏的余气所主，牙龈是胃经的络脉所在，热邪若不耗伤胃津，就必然消耗肾液，而且这两条经络的血脉都上行至此处。病情深重动血，血液凝结成瓣状位于齿上，阳证出血颜色紫，紫得像干漆；阴证出血颜色黄，黄得像酱瓣。见到阳证出血，以调理胃气为主；见到阴证出血，以救补肾阴为要。然而，如果是豆瓣色的出血大多危险，只有症状尚未逆乱的还可以治疗，否则就难以治愈了。这是什么原因呢？这是因为阴精在下枯竭，阳气在上厥逆。
如果牙齿光亮干燥像石头一样，这是胃热严重所致，若症状表现为无汗、恶寒，这是卫气偏胜，治疗以辛凉药物疏散卫分邪气、透发汗液为关键。如果牙齿颜色像枯骨一样，这是肾液枯竭，属于难治之症。如果牙齿上半截湿润，下半截干燥，这是肾水不能上承而心火上炎，必须紧急清心火、救肾水，等到干燥处转为湿润才稳妥。
如果齿垢像灰糕一样，这是胃气虚弱无力，津液亡失而湿浊之气盛行，大多会导致死亡。初病时齿缝流出清血，疼痛的是胃火冲激所致；不疼痛的是龙雷之火在内焚烧。牙齿焦黑没有齿垢的会死亡；牙齿焦黑但有齿垢的，是肾热胃阴被劫夺所致，应当轻微攻下，或者使用玉女煎来清胃热、救肾阴。
如果出现咬牙或磨牙的情况，是湿热化风，属于痉病；只是咬牙的，是胃热使气机走窜到其络脉；咬牙且脉象症状都衰弱的，是胃虚无水谷精气以内养所致。这是什么原因呢？因为虚证喜欢实证的表现。舌根不短缩但僵硬，牙关紧闭难以张开的，这不是风痰阻滞络脉，就是即将发生痉病。用酸味物体擦拭即可张开，因为酸味入筋，木气可以疏泄土气。
Furthermore, if heat transmits to the Ying (Nutrient) and Xue (Blood) levels, and the patient has a history of stagnant blood in the chest and diaphragm, the tongue color will inevitably be purple and dark, feeling moist upon palpation. In treatment, blood-dispersing agents such as Succinum (Amber), Salvia miltiorrhiza Radix et Rhizoma (Danshen), Persicae Semen (Taoren), and Moutan Cortex (Danpi) should be added. Otherwise, the stagnant blood and heat will contend with each other, obstructing the righteous Qi, leading to symptoms resembling or actual mania. If the tongue is purple and swollen, it indicates alcohol toxin rushing to the Heart; if purple and dry/dull, it reflects the colors of the Kidney and Liver manifesting externally, which is difficult to treat.
If the tongue is pale red without color, or dry and lacking luster, it signifies injury to Stomach Jin-Ye (Body Fluids) and the inability of Qi to transform fluids. In this case, Zhi Gancao Tang (Honey-Fried Licorice Decoction) should be used, and cold/cooling medicines must be avoided.
If there is no coating on the tongue but a faint black color like soot is visible, one must not disregard it. If accompanied by thirst, irritability, fever, and dryness, it indicates chronic Stomach dryness/heat; purgatives should not be used, but rather sweet-cold herbs to benefit the Stomach Yin. If there is no thirst, cold limbs, and a moist surface, it indicates a concurrent Yin syndrome (Cold); sweet-warm herbs should be used to support the Middle Jiao. Why is this? Because the pathogen is exposed externally while the interior lacks Yang.
A black and slippery tongue indicates Water overcoming Fire, belonging to a Yin syndrome, requiring warming therapy. If the tongue is short and contracted, this signifies exhaustion of Kidney Qi, making it difficult to treat. Only by adding Ginseng Radix et Rhizoma (Renshen) and Schisandrae Fructus (Wuweizi) might there be a chance of rescue. A black and dry tongue indicates exhaustion of Jin-Ye and blazing fire; urgently, one must drain the South (Heart/Fire) and tonify the North (Kidney/Water). If black, dry, and thick in the center, it indicates Earth dryness (Stomach Heat) exhausting Water (Kidney Yin); urgently, salty-bitter purgatives should be administered.
In addition, after examining the tongue in warm-heat diseases, one must also examine the teeth. Teeth are the surplus of the Kidney, and gums are the collaterals of the Stomach. If heat does not dry Stomach Jin-Ye, it must consume Kidney Ye (Essence/Fluids), and the blood of these two meridians flows to this area. When disease deepens and moves blood, clots form on the upper teeth. In Yang syndromes, the blood is purple, looking like dried lacquer; in Yin syndromes, the blood is yellow, looking like bean paste. If Yang blood is seen, regulating the Stomach is primary; if Yin blood is seen, saving the Kidney is essential. However, bean-paste colored bleeding is mostly dangerous; only if the symptoms are not yet rebellious can it be treated, otherwise it is difficult. Why? Because Yin is exhausted below and Yang is reversed above.
If teeth are shiny and dry like stone, it indicates severe Stomach heat. If symptoms include anhidrosis and aversion to cold, it indicates excess Wei (Defensive) Qi; the key is to use pungent-cool herbs to vent the Wei level and induce sweating. If teeth look like dead bones, it indicates exhaustion of Kidney fluids, which is difficult to treat. If the upper half is moist and the lower half dry, it indicates Kidney water failing to ascend while Heart fire flares upward; urgently clear the Heart and save the Water until the dry areas become moist.
If dental plaque resembles gray cake, it indicates weak Stomach Qi, loss of Jin-Ye, and dominance of damp-turbidity, often leading to death. If clear blood flows from the gum margins at the onset of disease, pain indicates Stomach fire rushing and stimulating; lack of pain indicates Dragon Fire burning internally. Blackened teeth without plaque indicate death; blackened teeth with plaque indicate Kidney heat and Stomach fluid depletion; mild purgation may be applied, or Yutou Jian (Jade Woman Decoction) to clear Stomach heat and save Kidney Yin.
Teeth grinding or clenching indicates damp-heat transforming into wind, resulting in spasm (Jing syndrome). Clenching alone indicates Stomach heat causing Qi to move through its collaterals. Clenching with weak pulse and symptoms indicates Stomach deficiency lacking grain essence to nourish internally. Why? Because deficiency tends to manifest with excess-like signs. If the root of the tongue is not shortened but stiff, and the jaw is locked tight, it is either phlegm-wind blocking the collaterals or impending spasm. Wiping with sour substances can open the jaw because sour enters the sinews, and Wood energy releases Earth energy.