或因劳役动作，肾间阴火沸腾，事闲之际，或于阴凉处解脱衣裳，更有新沐浴，于背阴处坐卧，其阴
火下行，还归肾间，皮肤腠理极虚无阳，但风来为寒凉所遏，表虚不任其风寒，自认外感风寒，求医解
表，以重绝元气，取祸如反掌。苟幸而免者，致虚劳，气血皆弱，不能完复。且表虚之人，为风寒所遏，
亦是虚邪犯表，始病一二日之间，特与外中贼邪有余之证颇相似处，故致疑惑，请医者只于气少气盛上辨
之。其外伤贼邪，必语声前轻后重，高厉而有力；若是劳役所伤，饮食不节，表虚不足之病，必短气气
促。上气高喘，懒语，其声困弱而无力，至易见也。若毫厘之误，则千里之谬。以上诸辨证，别有治法
用药正论，故作此说，分解于后。
复有一节，乘天气大热之时，在于路途中劳役得之，或在田野间劳形得之；更或有身体薄弱，食少劳
役过甚，又有修善常斋之人，胃气久虚，而因劳役得之者。皆与阳明中热白虎汤证相似，必肌体扪摸之壮
热，必躁热闷乱，大恶热，渴而饮水，以劳役过甚之故。亦身疼痛，始受病之时，特与中热外得有余之证
相似，若误与白虎汤，旬日必死。此证脾胃大虚，元气不足，口鼻中气皆短促而上喘，至日转以后，是阳
明得时之际，病必少减。若是外得中热之病，必到日晡之际，大作 语，其热增加，大渴饮水，烦闷不
止，其劳役不足者，皆无此证，尤易为分解。若有难决疑似之证，必当待一二日求医治疗，必不至错误矣。
有时因为过度劳累或剧烈活动，导致肾间的阴火沸腾。在闲暇之时，或者在阴凉处脱下衣服，又或者是刚洗完澡，坐在或躺在背阴的地方，这时阴火下行，重新回归到肾间。此时皮肤腠理极度空虚，缺乏阳气，一旦有风吹来，寒凉之气就会遏制住体表。由于表虚无法承受风寒的侵袭，患者往往自认为是外感风寒，寻求医生进行解表治疗。这样做会严重损伤元气，招致祸患易如反掌。如果侥幸免于一死，也会导致虚劳病，气血都变得虚弱，无法完全恢复。
况且，表虚之人被风寒所遏制，也是虚邪侵犯体表。在发病的一两天内，其症状特别与外感贼邪（实邪）有余的证候颇为相似，因此容易让人产生疑惑。请医生只需从气少还是气盛上来辨别。如果是外伤贼邪，必然表现为说话声音前轻后重，音调高亢且有力；如果是因劳役受伤，加上饮食不节制导致的表虚不足之病，必然表现为短气、气促、上气高喘、懒于言语，声音困倦微弱且无力，这很容易看出来。如果有一毫一厘的错误，就会导致千里之谬。以上这些辨证方法，另有详细的治疗方法和用药正论，所以在此说明，分解如下。
另外还有一种情况，是在天气大热的时候，在路上劳作得病，或者在田野间形体劳作得病；又或者身体薄弱，吃得少而劳作过度，还有那些修身养性、常年吃斋的人，胃气长期虚弱，因而因劳役得病的。这些情况都与阳明中热的白虎汤证相似，必然表现为肌肤触摸时感觉壮热，烦躁闷热混乱，非常厌恶热，口渴想喝水，这是因为劳役过度的缘故。同时也会有身体疼痛，在刚开始受病的时候，特别与外感中热、外来得邪有余的证候相似。如果误用白虎汤，十天内必定死亡。这种证候是脾胃大虚，元气不足，口鼻中的气息都短促而上喘，到了日转以后（下午），这是阳明经当令的时候，病情必然会稍微减轻。如果是外感中热的病，一定到了日晡时分（下午3-5点），出现大声胡言乱语，热度增加，极度口渴想喝水，烦闷不止。而那些因劳役不足的人，都没有这些症状，尤其容易分辨。如果有难以决断、疑似的证候，一定要等待一两天再求医治疗，就一定不会出错了。
Sometimes, due to excessive labor or strenuous activity, the Yin fire within the kidneys boils. During periods of leisure, if one removes clothing in a cool place, or after a fresh bath, sits or lies in a shaded area, the Yin fire descends and returns to the kidneys. At this time, the skin and interstices (Couli) are extremely deficient, lacking Yang Qi. When wind blows, the cold and chill obstruct the exterior. Because the exterior is deficient and cannot withstand Wind-Cold, patients often mistakenly believe they have contracted an external Wind-Cold invasion and seek physicians for diaphoretic treatment (sweating therapy). This severely depletes Yuan Qi (Original Qi), bringing disaster as easily as turning one's hand. If one luckily survives, it leads to Xu Lao (Deficiency Consumption), where both Qi and Blood become weak and unable to fully recover.
Furthermore, when individuals with a deficient exterior are obstructed by Wind-Cold, it is also considered Deficient Evil invading the exterior. In the first one or two days of illness, the presentation closely resembles that of Excess patterns caused by External Thieves' Evil (pathogenic factors), leading to confusion. Physicians should distinguish based on whether Qi is deficient or abundant. If injured by external Thieves' Evil, the voice will be light at first and heavy later, high-pitched and forceful. However, if injured by labor combined with irregular diet, resulting in a deficient exterior pattern, there will be shortness of breath, rapid breathing, upward rushing of Qi with high panting, reluctance to speak, and a voice that is weary, weak, and powerless; this is easy to identify. A minute error can lead to a massive mistake. Regarding these differentiations, detailed discussions on treatment methods and medication follow separately.
There is another scenario: contracting illness from labor during extreme heat, either while traveling or working in fields; or for those with weak constitutions who eat little but overwork; or for practitioners of asceticism and vegetarianism whose Stomach Qi has been long deficient, leading to illness from labor. These conditions resemble the Baihu Tang (White Tiger Decoction) syndrome of Yangming Zhong Re (Heat Stroke/Excessive Heat in Yangming). They necessarily present with burning heat upon touching the body, restlessness, stifling sensation, severe aversion to heat, thirst, and desire to drink water, due to excessive labor. There may also be body pain. Initially, the presentation closely resembles external Excess Heat patterns. Misusing Baihu Tang will result in death within ten days. This condition involves severe deficiency of the Spleen and Stomach and insufficiency of Yuan Qi, manifesting as shortness of breath from the mouth and nose with upward panting. After noon, when the Yangming channel is at its peak, the illness will slightly subside. In contrast, true external Heat Stroke will, by late afternoon (Ri Bu), cause delirious shouting, increased fever, extreme thirst, and unceasing restlessness. Patients with labor-induced deficiency do not exhibit these symptoms, making them easy to differentiate. For ambiguous cases that are difficult to decide, one must wait one or two days before seeking medical treatment to avoid errors.