无表里证者，但非汗证，又非下证，俱可用小柴胡汤，服后俟其余证，更以小柴胡加减法治之。
伤寒四五日至十三日，过经，无表证与里证，又未可下，（小柴胡汤。）不愈，大便硬者，（大柴胡汤。）六七日目中
不了了，睛不和，无表里证，发热，大便难，脉虽浮数，（大柴胡汤。）甚者，（大承气汤。）
下后脉数不解，至六七日不大便，有瘀血也，（抵当汤。）脉数，善饮消谷，六七日不大
便，亦瘀血证也。
少阴病始得之反发热、脉虽沉，以（麻黄细辛附子汤微汗之是也。）若二三日常见少阴
无阳证者，（麻黄甘草附子汤微汗之。）此二证又非表里之所能拘，不可不知也。
病患身大热反欲得衣，热在皮肤，寒在骨髓。仲景无治法，宜与（阴旦汤）。寒已，
次以（小柴胡汤加桂），以温其里，脉必沉而迟，手足微厥，下利清谷，此里寒也。所以
阴证亦有发热者，此表热也。
身大寒反不欲衣，寒在皮肤，热在骨髓也。仲景亦无治法，先与白虎加人参汤，热除，
次以（桂枝麻黄各半汤），以解其外，脉必滑，身厥舌干也。所以少阴恶寒而倦，此表
寒也。时时自烦，不欲浓衣，此里热也，（大柴胡汤下之。）
凡阴证身静，有语无声，气短吵息，目不了了、鼻中呼不出吸不入，口鼻气粗，水浆一入
，二便不噤，面上恐寒，有如刀割，面青黑，目睛无光，有虚阳泛上，面脸赤，血不红活为
异耳。必身重难以转侧，或喜向壁卧，或淹卧欲寝，或闭目不欲见人，懒语言，语或
气少，难以答应。或鼻气往来自冷，声音不响亮。或前轻而后重？或时燥热寒渴，不能
饮水，唇口或青或紫或白，不见红色，手足自冷，手爪青紫，血不红活，
小便白色，或有淡黄，大便不实。或肌肉之分，以手按之，殊无大热。阴甚者则冷透
手也。虽是发热，与阳证大异，不可以面赤烦渴为论，误作阳证，须要详辨明白可也。
【温】四逆汤、真武汤。
没有表证和里证表现的，只要不属于发汗的适应证，也不属于攻下的适应证，都可以使用小柴胡汤。服药后等待其他症状出现，再根据具体情况用小柴胡汤进行加减治疗。
伤寒病经过四五日到十三天，已经过了经界（指病邪离开原来的经络阶段），既没有表证也没有里证，而且此时还不可以使用攻下法，如果服用小柴胡汤后病仍未愈，大便变硬的，（适用大柴胡汤。）如果六七天时眼睛视物不清、眼球转动不灵活，没有表证和里证，伴有发热、大便困难，脉象虽然浮数，（适用大柴胡汤。）病情严重的，（适用大承气汤。）
攻下之后脉象仍然数而有力，到了六七天不大便，这是有瘀血的表现，（适用抵当汤。）脉象数，食欲旺盛容易饥饿，六七天不大便，这也是瘀血的证候。
少阴病刚得病时反而发热，脉象虽然沉，（应当用麻黄细辛附子汤微发其汗。）如果是二三天经常见到少阴病却没有阳热证的，（适用麻黄甘草附子汤微发其汗。）这两种证候又不受表证或里证的局限，不可不知道这一点。
病人身体大热却想要穿衣服，这是热在体表浅层，寒在体内深层。张仲景没有给出治法，适宜给予（阴旦汤）。寒气解除后，接着用（小柴胡汤加桂枝），来温补其里，脉象必定沉而迟，手脚轻微厥冷，腹泻且食物未消化排出，这是里寒证。所以阴证也有发热的，这是表热。
身体大寒却不想穿衣服，这是寒在体表浅层，热在体内深层。张仲景也没有给出治法，先给予白虎加人参汤，热退后，再用（桂枝麻黄各半汤）来解表，脉象必定滑，手脚厥冷舌干。所以少阴病恶寒且疲倦，这是表寒。时常自觉烦闷，不喜欢穿厚衣服，这是里热证，（可用大柴胡汤攻下。）
凡是阴证，身体安静，有言语但声音低微，气短喘息，眼睛视物不清，鼻中呼吸气息出入异常，口鼻呼吸粗重，饮食入口后，大小便失禁，脸上怕冷，感觉如刀割一般，面色青黑，眼神无光，这是虚阳上浮，面部颧骨发红，血色不红润鲜活作为其特征。必然身体沉重难以翻身转侧，或者喜欢面向墙壁躺卧，或者昏睡想睡觉，或者闭眼不想见人，懒于说话，说话时气息微弱，难以应答。或者鼻息自感寒冷，声音不响亮。或者前轻后重？或者时而燥热口渴，但不能饮水，嘴唇颜色或青或紫或白，不见红色，手脚自然冰冷，指甲青紫，血色不红润鲜活，小便白色，或者有淡黄色，大便不成形。或者用手按压肌肉部位，并没有明显的大热感。阴寒严重的则冷透手。虽然是发热，但与阳证大不相同，不能因为面红口渴就判断为阳证，误作阳证处理，必须详细辨别清楚才行。【温法】四逆汤、真武汤。
For cases presenting neither exterior nor interior syndromes, provided they do not fit the indications for sweating (diaphoresis) or purging (catharsis), Xiao Chai Hu Tang (Minor Bupleurum Decoction) may be used. After administration, wait for other symptoms to manifest, then treat with modified Xiao Chai Hu Tang based on the specific presentation.
In cold damage (Shanghan), from the fourth or fifth day up to the thirteenth day, if the pathogen has passed beyond its original meridian stage (Guojing), and there are no exterior or interior syndromes, and purging is not yet indicated, if illness persists after taking Xiao Chai Hu Tang (Minor Bupleurum Decoction), and the stool becomes hard, (Da Chai Hu Tang (Major Bupleurum Decoction)) is indicated. If after six or seven days, the eyes appear unclear and the pupils are unresponsive, without exterior or interior syndromes, accompanied by fever and difficulty in defecation, even if the pulse is floating and rapid, (Da Chai Hu Tang (Major Bupleurum Decoction)) is indicated. In severe cases, (Da Cheng Qi Tang (Major Order the Qi Decoction)) is indicated.
After purging, if a rapid pulse persists and after six or seven days there is no defecation, this indicates blood stasis (Yuxue), and (Di Dang Tang (Resist the Decoction)) is indicated. A rapid pulse, polyphagia (excessive hunger), and no defecation for six or seven days also constitute a blood stasis syndrome.
When Shaoyin disease (Shaoyin Bing) first occurs, if there is contrary fever and the pulse is deep despite this, (Ma Huang Xi Xin Fu Zi Tang (Ephedra, Asarum, and Aconite Decoction)) should be used to induce slight sweating. If after two or three days, typical Shaoyin presentations occur without Yang heat signs, (Ma Huang Gan Cao Fu Zi Tang (Ephedra, Licorice, and Aconite Decoction)) should be used to induce slight sweating. These two conditions are not confined by exterior or interior classifications; this must be understood.
If a patient has high body heat but desires to wear clothes, it indicates heat at the superficial level (skin) and cold at the deep level (marrow/internal). Zhang Zhongjing did not provide a treatment method for this specific presentation; Yin Dan Tang (Yin Dawn Decoction) is suitable. Once the cold resolves, follow with Xiao Chai Hu Tang Jia Gui Zhi (Xiao Chai Hu Tang plus Cinnamon Twig) to warm the interior. The pulse will likely be deep and slow, with slightly cold extremities and diarrhea containing undigested food, indicating interior cold. Thus, fever can occur in Yin syndromes due to exterior heat.
If a patient feels intense cold but does not desire to wear clothes, it indicates cold at the superficial level and heat at the deep level. Zhang Zhongjing also did not provide a treatment method for this; first administer Bai Hu Jia Ren Shen Tang (White Tiger Decoction plus Ginseng). After the heat subsides, use Gui Zhi Ma Huang Ge Ban Tang (Half-Size Combination of Cinnamon Twig and Ephedra Decoction) to resolve the exterior. The pulse will likely be slippery, with cold extremities and a dry tongue. Thus, aversion to cold and fatigue in Shaoyin disease indicate exterior cold. Frequent inner restlessness without desire for thick clothing indicates interior heat, which may be treated with Da Chai Hu Tang (Major Bupleurum Decoction) via purging.
In general, Yin syndromes present with stillness, speech without voice, shortness of breath, unclear vision, abnormal nasal respiration, coarse breathing, incontinence of urine and feces after swallowing fluids, facial aversion to cold feeling like knife-cutting, cyanotic-black complexion, dull eyes, and floating deficient Yang causing malar flushing with non-vibrant blood color as distinguishing features. The body is heavy and difficult to turn, preferring to lie facing the wall, sleeping deeply, keeping eyes closed avoiding people, being reluctant to speak, speaking with weak breath and difficulty responding. Nasal breath may feel cold, voice may be indistinct. Symptoms may start mild and become severe, or alternate between dry heat/thirst and inability to drink. Lips may be cyanotic, purple, or white, lacking redness. Extremities are naturally cold, nails cyanotic, blood non-vibrant. Urine is white or pale yellow; stool is loose. Palpation of muscles reveals no significant heat. In severe Yin cold, the cold penetrates the hand. Although fever may be present, it differs greatly from Yang syndromes. One must not diagnose based solely on flushed face and thirst, mistaking it for a Yang syndrome; careful differentiation is essential. [Warming Methods] Si Ni Tang (Four Reversals Decoction), Zhen Wu Tang (True Warrior Decoction).