秦子曰∶劳伤之症，即发热咳嗽，劳瘵骨蒸之症。今人患者比比，考之《内经》，但有
言虚，未见言劳；然于病因条内，则有因虚成病之语，即可谓之虚劳矣。至《金匮》书则发
明虚劳之症，立论立方，而劳伤之症始彰。至巢氏撰《病源候论》，分别五者为劳，七者为
伤，则劳伤之义已着；后又立六极，三十三蒸，反觉太烦太碎。余今酌立精气血之伤，五脏
之劳，为劳伤，而以《机要》所云，感寒成劳，感热成劳，自外入内者为外感，气怯神伤
，精竭血燥，自内致病者为内伤，分立外感二条，内伤八条，而大纲节目尽矣。
【感寒劳伤之症】初起恶寒发热，咳嗽气逆，胁肋刺痛，或无汗身热，或朝凉暮热，
此即感寒成劳，伤风成劳之症也。
【感寒劳伤之因】《玄珠》云，体虚之人，最易感邪。不去其邪；便服补剂，或不忌
荤酒，邪气得补，留滞发热，热伤肺气，为喘为咳，此感寒成劳之因也。
【感寒劳伤之脉】多见浮紧，左脉浮紧，血分感寒；右脉浮紧，气分感寒。
【感寒劳伤之治】左脉浮紧，血分感寒者，羌活柴胡汤，加川芎、芍药治之。右关浮
紧，气分感寒者，干葛防风汤，加紫苏、广皮治之。
羌活柴胡汤
羌活 独活 柴胡 防风 川芎 白芍药
干葛防风汤
干葛 防风 荆芥 柴胡 紫苏 广皮
秦子说：劳伤的病症，就是发热咳嗽、劳瘵骨蒸的病症。如今患病的人比比皆是，考察《内经》，只有提到“虚”，没有见到提到“劳”；然而在病因条目中，则有因虚致病的说法，这就可以称为虚劳了。到了《金匮要略》一书，则阐明了虚劳的病症，建立理论并设立方剂，于是劳伤的病症才显著起来。到了巢元方撰写《诸病源候论》，将五种情况分别归为劳，七种情况归为伤，那么劳伤的含义已经明确；后来又设立六极、三十三蒸，反而觉得过于繁琐细碎。我现在斟酌确立精、气、血的损伤，五脏的劳损，作为劳伤，而依据《医学机要》所说的，感受寒邪而成劳，感受热邪而成劳，由外侵入体内的属于外感，气怯神伤，精竭血燥，由内部致病的是内伤，分别设立外感两条、内伤八条，这样大的纲领和细节就完备了。
【感受寒邪所致劳伤的病症】初起时恶寒发热，咳嗽气逆，胁肋刺痛，或者无汗身热，或者早晨凉晚上热，这就是感受寒邪成劳、伤风成劳的病症。
【感受寒邪所致劳伤的原因】《玄珠》说，身体虚弱的人，最容易感受邪气。如果不祛除邪气，就服用补药，或者不忌口荤腥酒类，邪气得到补益，留滞体内导致发热，热邪损伤肺气，造成气喘咳嗽，这就是感受寒邪成劳的原因。
【感受寒邪所致劳伤的脉象】多见浮紧脉，左脉浮紧，是血分感受寒邪；右脉浮紧，是气分感受寒邪。
【感受寒邪所致劳伤的治疗】左脉浮紧，血分感受寒邪者，用羌活柴胡汤，加川芎、芍药治疗。右关脉浮紧，气分感受寒邪者，用干葛防风汤，加紫苏、广皮（陈皮）治疗。
Qin Zi said: The syndrome of labor injury (Laoshang) is the syndrome of fever and cough, and phthisis with bone-steaming sensation. Currently, patients are numerous. Examining the *Neijing* (Classic of Internal Medicine), there are only mentions of "deficiency" (Xu), but no mention of "labor"; however, in the section on etiology, there is the statement that diseases arise from deficiency, which can be termed deficiency-labor (Xulao). It was not until the *Jingui Yaolue* (Essential Prescriptions of the Golden Cabinet) that the syndrome of deficiency-labor was elucidated, theories were established, and prescriptions were formulated, thereby making the syndrome of labor injury prominent. When Chao Yuanfang wrote the *Zhubing Yuanhou Lun* (Treatise on the Pathogenesis and Manifestations of All Diseases), he distinguished five types as labor and seven types as injury, thus clarifying the meaning of labor and injury; later, the establishment of six extremes (Liují) and thirty-three steamings (San-shisan Zheng) seemed overly complicated and fragmented. I now carefully define the injuries to essence, qi, and blood, and the labors of the five zang organs, as labor injury. Based on what is stated in the *Yixue Jingyao* (Medical Essentials), contracting cold leading to labor and contracting heat leading to labor, entering from the exterior into the interior, are classified as external contraction (Waigan); while qi deficiency with spirit injury, exhaustion of essence and dryness of blood, originating from within to cause disease, are classified as internal injury (Neishang). I separately establish two categories for external contraction and eight for internal injury, thus completing the general outline and details.
[Syndrome of Labor Injury due to Cold Contraction] At the onset, there is aversion to cold and fever, cough with rebellious qi, stabbing pain in the hypochondrium and ribs, or absence of sweating with body heat, or coolness in the morning and heat in the evening. This is the syndrome of labor injury due to cold contraction or wind-strike.
[Etiology of Labor Injury due to Cold Contraction] The *Xuanzhu* states that individuals with a weak constitution are most susceptible to pathogenic factors. If the pathogen is not expelled and tonifying agents are administered immediately, or if one does not abstain from meat and alcohol, the pathogen receives support from the tonics, remains stagnant, causing fever. Heat damages lung qi, resulting in wheezing and coughing. This is the etiology of labor injury due to cold contraction.
[Pulse of Labor Injury due to Cold Contraction] A floating-tight pulse (Fu Jin Mai) is commonly seen. A floating-tight pulse on the left indicates cold contraction in the blood level; a floating-tight pulse on the right indicates cold contraction in the qi level.
[Treatment of Labor Injury due to Cold Contraction] For a floating-tight pulse on the left, indicating cold contraction in the blood level, treat with Qianghuo Chaihu Tang (Notopterygium and Bupleurum Decoction), adding Chuanxiong (Ligusticum Rhizome) and Shaoyao (Peony Root). For a floating-tight pulse at the right Guan position, indicating cold contraction in the qi level, treat with Gange Fangfeng Tang (Pueraria and Saposhnikovia Decoction), adding Zisu (Perilla Leaf) and Guangpi (Citrus Peel).
Qianghuo Chaihu Tang (Notopterygium and Bupleurum Decoction)
Qianghuo (Notopterygii Rhizoma et Radix), Duhuo (Angelicae Pubescentis Radix), Chaihu (Bupleuri Radix), Fangfeng (Saposhnikoviae Radix), Chuanxiong (Ligustici Chuanxiong Rhizoma), Baishaoyao (Paeoniae Radix Alba)
Gange Fangfeng Tang (Pueraria and Saposhnikovia Decoction)
Gange (Puerariae Lobatae Radix), Fangfeng (Saposhnikoviae Radix), Jingjie (Schizonepetae Spica), Chaihu (Bupleuri Radix), Zisu (Perillae Folium), Guangpi (Citri Reticulatae Pericarpium)