汤其表已解，而犹不清楚者，在经余邪未尽耳。十二日经尽之时，余邪尽，自然愈也
。
【集注】
魏荔彤曰：此条申明太阳中风病愈后，风邪留滞之证，应听其自愈也。
太阳病，头痛，发热，汗出，恶风者，桂枝汤主之〔重出衍文〕。桂枝本为解肌，若
其人脉浮紧，发热，汗不出者，不可与也，常须识此，勿令误也。
【注】
夫桂枝汤，本为解肌，中风表虚之药也。若其人脉浮紧，发热汗不出者，乃伤寒表实
之病，不可与也。当须识此为麻黄汤证，必令误与桂枝汤也。
【集注】
程应旄曰：可与、不可与，在毫厘疑似之间，误多失之于仓卒，须常将荣卫之分别处
，两两互勘，阴阳不悖，虚实了然。不以桂枝误治脉浮紧汗不出之伤寒，自不致以麻
黄误治脉浮缓汗自出之中风矣。
若酒客病，不可与桂枝汤，得之则呕，以酒客不喜甘故也。
【注】
酒客，谓好饮之人也。酒客病、谓过饮而病也。其病之状，头痛、发热、汗出、呕吐
，乃湿热薰蒸使然，非风邪也。若误与桂枝汤服之则呕，以酒客不喜甘故也。
【集注】
成无己曰：酒客内热，喜辛而恶甘。桂枝汤甘，酒客得之，则中烦而呕。
凡服桂枝汤吐者，其后必吐脓血也。
【注】
凡酒客得桂枝汤而呕者，以辛甘之品，能动热助涌故也。若其人内热素盛，服桂枝汤
又不实时呕出，则益助其热，所以其后必吐脓血也。然亦有不吐脓血者，则是所伤者
轻，而热不甚也。
【集注】
刘宏璧曰：桂枝气味甚簿，酒客不可与者，举一以例其余也。庸工不得其解，每遇热
盛之人，但去桂枝，于甘辛极热之类，全无顾忌，仲景岂意后人如此之愚哉！即如产
后不宜寒凉，所以举一白芍之味酸微寒者以示戒，今祗知除去白芍，于三黄寒凉等药
，反恣用无忌。殊不知圣人一语，该括无穷，味薄者尚不可与，其味厚者可知；微寒
者既在宜禁，而大寒者尤所当戒。世俗不能引申触类，徒以卤莽减裂为事，可见上古
医书，非精详玩味，乌能有得耶！
太阳病，发汗，遂漏不止，其人恶风，小便难，四肢微急，难以屈伸者，桂枝加附子
汤主之。
【注】
太阳中风，本当解肌，若大发其汗，如水流漓，因而遂漏不止，其人必腠理大开，表
阳不固，故恶风也。液伤于内，膀胱津少，故小便难也。液伤于外，复加风袭，故四
肢微急，难以屈伸也。宜桂枝加附子汤主之。服根据桂枝汤法者，是于固阳敛液中，和
荣卫解风邪也。
【集注】
方有执曰：此太阳中风误汗之变证。小便难者，以汗漏不止，必亡阳、亡津液。亡阳
则气不足，亡津液则水道枯竭。且小便者，膀胱所司也。膀胱本太阳经，而为诸阳主
气，气不足则化不行矣。
程知曰：此阳气与阴液两亡，复加外风袭入，与真武证微细有别，真武汤是救里寒亡
阳之失，急于回阳者；桂枝加附子汤是救表寒漏风之失，急于温经者。
After the decoction is taken, if the exterior syndrome has been resolved but symptoms remain unclear, it is because residual pathogenic factors in the meridians have not yet completely cleared. When the twelve-day cycle of meridian circulation concludes, the residual pathogens will be exhausted, and the disease will naturally heal.
[Ji Zhu]
Wei Litong states: This clause elucidates the condition where wind pathogens linger after the recovery from Taiyang Wind Strike (Taiyang Fengzhong), and one should allow it to heal spontaneously.
In Taiyang Disease, characterized by headache, fever, sweating, and aversion to wind, Guizhi Tang (Cinnamon Twig Decoction) is the primary treatment [This passage is a redundant repetition]. Guizhi Tang is originally intended to resolve the muscle layer; however, if the patient presents with a floating and tight pulse, fever, and absence of sweating, it must not be administered. One must always keep this in mind to avoid errors.
[Note]
Guizhi Tang (Cinnamon Twig Decoction) is originally a medicine for resolving the muscle layer, suitable for treating Exterior Deficiency patterns of Wind Strike. If the patient presents with a floating and tight pulse, fever, and no sweating, this constitutes an Exterior Excess pattern of Cold Damage (Shanghan), and Guizhi Tang must not be given. One must recognize this as an indication for Mahuang Tang (Ephedra Decoction) and ensure that Guizhi Tang is not mistakenly administered.
[Ji Zhu]
Cheng Yingmao states: The distinction between what can and cannot be used lies in subtle similarities. Errors often arise from haste. One must frequently compare the distinctions between Ying (Nutritive) and Wei (Defensive) Qi, ensuring Yin and Yang do not contradict each other and that Deficiency and Excess are clear. In this way, one will not mistakenly use Guizhi Tang to treat Cold Damage with a floating-tight pulse and no sweat, nor will one mistakenly use Mahuang Tang to treat Wind Strike with a floating-slow pulse and spontaneous sweating.
If a person who habitually drinks alcohol falls ill, Guizhi Tang (Cinnamon Twig Decoction) must not be given; doing so will cause vomiting, because such individuals dislike sweet flavors.
[Note]
"Jiu Ke" refers to those who enjoy drinking. "Jiu Ke Bing" refers to illness caused by excessive drinking. The symptoms include headache, fever, sweating, and vomiting, which result from damp-heat steaming, not from wind pathogens. If Guizhi Tang is mistakenly administered, it will induce vomiting because those accustomed to alcohol dislike sweet flavors.
[Ji Zhu]
Cheng Wuji states: Individuals with internal heat from alcohol consumption prefer pungent flavors and dislike sweet ones. Since Guizhi Tang is sweet, its administration to such individuals causes internal vexation and vomiting.
For anyone who vomits after taking Guizhi Tang, they will subsequently vomit pus and blood.
[Note]
When individuals who drink alcohol vomit after taking Guizhi Tang, it is because the pungent and sweet properties stimulate heat and induce upward surging. If the person already has abundant internal heat and does not vomit immediately after taking the decoction, the medicine will further exacerbate the heat, leading to subsequent vomiting of pus and blood. However, some may not vomit pus and blood; this indicates that the injury was mild and the heat was not severe.
[Ji Zhu]
Liu Hongbi states: Guizhi has a light flavor; stating that it should not be given to alcoholics serves as an example for other cases. Unskilled physicians fail to understand this principle. Whenever they encounter patients with intense heat, they merely remove Guizhi but show no caution regarding other extremely hot and pungent-sweet substances. Did Zhang Zhongjing ever imagine his successors would be so foolish? For instance, cold and cooling herbs are generally contraindicated postpartum; thus, Baishao (White Peony Root), which is sour and slightly cold, is cited as a warning. Today, people only know to remove Baishao but recklessly use heavy cold herbs like Sanhuang (Three Yellows). They fail to realize that the Sage's words encompass infinite principles: if herbs with light flavors are contraindicated, those with heavy flavors are even more so; if slightly cold herbs are prohibited, heavily cold herbs are strictly forbidden. Laypeople fail to extend these principles through analogy, content only with reckless reduction and fragmentation. This shows that ancient medical texts require careful study and contemplation to yield true understanding.
In Taiyang Disease, if excessive sweating leads to continuous leakage of sweat, accompanied by aversion to wind, difficulty in urination, slight stiffness of the four limbs making flexion and extension difficult, Guizhi Jia Fuzi Tang (Guizhi Decoction with Added Aconite Root) is the primary treatment.
[Note]
In Taiyang Wind Strike, the proper approach is to resolve the muscle layer. If excessive sweating is induced, causing sweat to flow profusely and leak continuously, the pores become widely open, and the Exterior Yang fails to secure the surface, resulting in aversion to wind. Internal fluid damage reduces bladder fluids, causing difficulty in urination. External fluid damage, combined with wind invasion, causes slight stiffness of the limbs, making movement difficult. Guizhi Jia Fuzi Tang (Guizhi Decoction with Added Aconite Root) should be used. Following the administration method of Guizhi Tang (Cinnamon Twig Decoction) consolidates Yang, astringes fluids, harmonizes Ying and Wei, and resolves wind pathogens.
[Ji Zhu]
Fang Youzhi states: This is a complication arising from the mistaken use of sweating therapy in Taiyang Wind Strike. Difficulty in urination occurs because continuous sweating leads to loss of Yang and depletion of body fluids. Loss of Yang results in Qi deficiency, while depletion of fluids dries up the water passages. Urination is governed by the Bladder. The Bladder belongs to the Taiyang Meridian and governs the Qi of all Yang channels; when Qi is deficient, transformation and transportation fail.
Cheng Zhi states: This condition involves the simultaneous loss of Yang Qi and Yin fluids, compounded by external wind invasion. It differs subtly from the Zhenwu Tang (True Warrior Decoction) pattern. Zhenwu Tang is used to rescue interior cold and lost Yang, prioritizing the return of Yang; Guizhi Jia Fuzi Tang (Guizhi Decoction with Added Aconite Root) is used to rescue exterior cold and leaking wind, prioritizing the warming of the meridians.