麻黄（去节）二两 细辛二两 附子（炮去皮，破八片）一枚
右三味，以水一斗，先煮麻黄，减二升，去上沫，内诸药，煮取三升，去滓，温服一
升，日三服。
少阴病，得之二、三日，麻黄附子甘草汤微发汗，以二、三日无里证，故微发汗也。
【注】
此详上条少阴病得之二、三日，仍脉沉发热不解者，宜麻黄附子甘草汤微发其汗也。
盖谓二、三日不见吐利里寒之证，知邪已衰，然热仍在外，尚当汗之，但不可过耳，
故不用细辛而用甘草，盖于温散之中有和意也。此二证，皆末曰无汗，非仲景略之也
，以阴不得有汗，不须言也。
【集注】
张璐曰：少阴无发汗之法，汗之必至亡阳。惟此一证，其外有太阳发热无汗，其内不
吐利躁烦呕渴，乃可温经散寒，取其微似之汗也。
程应旄曰：既云微发汗矣，仍用「以」字、「故」字推原之，足见郑重之意。按此二
条，与太阳篇发热头痛脉沉用四逆者同一证。彼以不差，则期过三日，可知病已入里
，虽尚冒太阳头痛，直以少阴法律之。此少阴病在初得二、三日，虽无头痛证，不容
竟作少阴治之，故仍兼太阳之法以律之。一出一入，不啻爰书。假令前条得之二、三
日，后二条过二、三日不差，则四逆之与麻黄，易地皆然矣。
汪琥曰：上条反发热脉沉，此亦反发热脉沉，但上言始得之为急，此言得之二、三日
为缓。病势稍缓，治法亦缓。
麻黄（去掉节）二两 细辛二两 附子（炮制，去皮，破成八片）一枚
以上三味药，用水一斗，先煮麻黄，减少二升水，去掉水面上的浮沫，加入其他药物，煮取三升药液，去掉药渣，温服一升，每天服用三次。
少阴病，患病两三天，用麻黄附子甘草汤轻微发汗，因为两三天内没有出现里证，所以采用轻微发汗的方法。
【注】
这里详细解释上一条中少阴病患病两三天，仍然脉沉、发热不退的情况，适宜用麻黄附子甘草汤轻微发汗。
意思是说，两三天内没有见到呕吐、腹泻等里寒症状，知道邪气已经衰退，然而热象仍在体表，还应当使用汗法，只是不可过度罢了，
所以不用细辛而用甘草，这是在温散之中含有调和之意。这两个证候，结尾都提到无汗，不是张仲景省略了，
而是阴证本不应有汗，不需要特别说明。
【集注】
张璐说：少阴病没有发汗的治疗方法，强行发汗必然导致亡阳。只有这一个证候，其外有太阳病的发热无汗，其内部没有
呕吐、腹泻、烦躁、呕吐、口渴等症状，才可以温经散寒，取其微微似汗的效果。
程应旄说：既然说了轻微发汗，仍然用“以”字、“故”字来推究原因，足以见得郑重的意思。按这两条，与太阳篇中发热头痛脉沉用四逆汤的情况属于同一类证候。那边因为病情未愈，则期限超过三天，可知病已入里，
虽然还有太阳病的头痛症状，直接按照少阴病的法律来治疗。这里是少阴病在初得两三天，虽然没有头痛症状，不容许
完全当作少阴病来治，所以仍然兼用太阳病的方法来规范治疗。一出（从太阳出）一入（入少阴），不啻于确凿的证据。假如前条是得病两三天，后两条超过两三天未愈，那么四逆汤与麻黄汤的使用，互换位置也是合理的。
汪琥说：上一条是反发热脉沉，这一条也是反发热脉沉，但上条说是刚得病为急症，这一条说是得病两三天为缓症。病势稍微缓和，治疗方法也相应缓和。
Ephedrae Herba (Mahuang, 麻黄) [devoid of nodes] two liang
Cibotii Rhizoma (Xixin, 细辛) two liang
Aconiti Lateralis Radix Praeparata (Fuzi, 附子) [processed, skin removed, broken into eight pieces] one piece
The above three ingredients are boiled with ten dou of water. First, boil Ephedrae Herba until the volume reduces by two dou, remove the foam on the surface, then add the remaining herbs. Boil to obtain three sheng of decoction, strain off the dregs, and take one sheng warm, three times a day.
Shaoyin disease (Disease of the Shaoyin channel), occurring two or three days after onset, is treated with Mahuang Fuzi Gancao Tang (Ephedra, Aconite, and Licorice Decoction) to induce mild sweating, because there are no interior syndromes within two or three days, hence mild sweating is employed.
[Annotation]
This elaborates on the previous clause regarding Shaoyin disease occurring two or three days after onset, where the pulse remains deep and fever persists without resolution; in such cases, Mahuang Fuzi Gancao Tang (Ephedra, Aconite, and Licorice Decoction) should be used to induce mild sweating.
It implies that if within two or three days there are no signs of vomiting, diarrhea, or interior cold, it indicates that the pathogenic factor has weakened. However, since the heat remains exterior, diaphoresis (sweating method) is still indicated, but must not be excessive. Therefore, Cibotii Rhizoma is omitted in favor of Glycyrrhizae Radix et Rhizoma (Licorice Root and Rhizome), embodying a harmonizing intent within warming and dispersing actions. Both syndromes mention "no sweat" at the end; this is not an omission by Zhang Zhongjing, as Yin syndromes inherently do not present with sweat, making explicit mention unnecessary.
[Collected Annotations]
Zhang Lu stated: There is no diaphoretic method for Shaoyin disease; forcing sweat will inevitably lead to collapse of Yang (Wang Yang). Only in this specific syndrome, characterized externally by Taiyang fever and absence of sweat, and internally by the absence of vomiting, diarrhea, restlessness, retching, or thirst, can one warm the channels and disperse cold, aiming for a slight, lingering sweat.
Cheng Yingmao stated: The use of the characters "yi" (because) and "gu" (therefore) after mentioning mild sweating demonstrates careful reasoning and emphasis. These two clauses correspond to the syndrome in the Taiyang chapter involving fever, headache, and deep pulse, treated with Sini Tang (Frigid Four Decoction). In that case, if the condition does not resolve, it implies passage beyond three days, indicating the disease has entered the interior. Even if Taiyang headache persists, it should be governed by Shaoyin principles. Here, Shaoyin disease is in its early stage of two or three days; although headache is absent, it cannot be entirely treated as pure Shaoyin disease. Thus, Taiyang methods are concurrently applied. This interplay between exiting (Taiyang) and entering (Shaoyin) serves as definitive evidence. Had the previous clause occurred within two or three days, and these latter clauses persisted beyond two or three days without resolution, the application of Sini Tang versus Mahuang Tang would be interchangeable.
Wang Hu stated: The previous clause presents counter-fever with a deep pulse; this clause also presents counter-fever with a deep pulse. However, the former describes an acute condition upon initial onset, while the latter describes a milder condition occurring two or three days after onset. As the pathological momentum is slightly slower, the treatment method is also gentler.