始终潮热总不休。饮食不进亦堪忧。咳嗽口渴与痰候。养阴退阳妙方投。
麻症初起。最喜潮热。正收与收后。又喜无热。若自初起至收后。而始终潮不退者。或饮食不
进。或咳嗽。或口渴。或见痰症。俱属血虚血热。夫麻症属阳。血多虚耗。滋阴补血。其热自除。此
养阴退阳之义也。宜用四物汤（见二十五条）。按症加减主之。如口渴加麦冬、天花粉。或犀角汁。
如咳加栝蒌霜、杏仁霜。如有痰加贝母、陈皮。如有喘加芥子、葶苈。总宜加元参、骨皮、黄芩、黄
柏之类以治之。切忌用人参、半夏、白术之类。
朱曰 始终潮热。非血虚即血热。滋阴补血。治法最佳。加法亦合拍。
心火内炽烦躁干。急宜泻火清心源。若因久病元气虚。法用养阴病即痊。
麻本火候。火者手少阴心经主之。心火内炽。故烦躁不宁。若麻症火邪太甚。烦渴便闭。致麻
不出。危笃之极。宜清心、泻火、清金。以清阳汤（见第九条）除升麻、桔梗、甘草、生姜。倍用麦冬、
黄芩、玄参。以三剂与服。而麻即出。或以加味人参白虎汤（见二十九条）去人参、甘草、粳米。加
黄芩、元参主之。若系久病之人。元气虚弱。或变烦躁口渴。麻竟不收。凝滞在皮肤间者。此血虚
故也。则不宜用前二方。当以养阴汤主之。此乃养阴配阳之义也。
朱曰 烦渴便闭。致麻不出。亦麻证之至险者。知泻火清金之法。虽险必安。至本条所
示清阳汤及加味人参白虎汤。内中皆有散药。所以为佳。
养阴汤
熟地黄 牛蒡子（炒研各八分） 当归 白芍药 麦冬（冬七分） 荆芥（三分） 川芎 薄荷（
各二分） 元参 连翘（各五分） 二剂、水煎服。后剂。加黄连二分五厘。
始终潮热总不休。饮食不进亦堪忧。咳嗽口渴与痰候。养阴退阳妙方投。
麻疹初起时，最适宜出现潮热；疹子正透发及透发之后，又适宜没有发热。如果从初起到透发结束，始终潮热不退，或者出现饮食不进、咳嗽、口渴、见痰症等情况，都属于血虚和血热。因为麻疹属于阳证，血液多被虚耗，通过滋阴补血，热邪自然消除。这就是“养阴退阳”的意义。适宜使用四物汤（参见第二十五条），根据症状加减后主治。如口渴加麦冬、天花粉，或犀角汁。如咳嗽加栝蒌霜、杏仁霜。如有痰加贝母、陈皮。如有气喘加芥子、葶苈。总之宜加入元参、地骨皮、黄芩、黄柏之类来治疗。切忌使用人参、半夏、白术之类。
朱氏说：始终潮热，不是血虚就是血热。滋阴补血是最佳治法。加减用药也合乎法度。
心火内炽导致烦躁口干，急宜泻火清心源。若因久病元气虚弱，法则用养阴病即痊愈。
麻疹本属火邪，火由手少阴心经所主。心火内炽，所以烦躁不宁。如果麻疹火邪太盛，烦渴便秘，导致疹子出不来，危险到了极点。适宜清心、泻火、清肺金。用清阳汤（参见第九条）去掉升麻、桔梗、甘草、生姜，加倍使用麦冬、黄芩、玄参，给患者服用三剂，疹子就能发出。或者用加味人参白虎汤（参见第二十九条）去掉人参、甘草、粳米，加入黄芩、元参主治。如果是久病之人，元气虚弱，或者变生烦躁口渴，疹子竟然不能收没，凝滞在皮肤间的，这是血虚的缘故。则不宜使用前两个方子，应当以养阴汤主治。这是“养阴配阳”的意义。
朱氏说：烦渴便秘，导致疹子不出，也是麻疹证候中最危险的。知道泻火清肺的方法，虽然情况危险但必然平安。至于本条所示的清阳汤及加味人参白虎汤，里面都有发散药，所以为好。
养阴汤
熟地黄 牛蒡子（炒研各八分） 当归 白芍药 麦冬（七分） 荆芥（三分） 川芎 薄荷（各二分） 元参 连翘（各五分） 二剂，水煎服。后一剂，加黄连二分五厘。
Constant tidal fever never ceases. Inability to eat is also a cause for worry. Cough, thirst, and phlegm symptoms appear. The wonderful prescription of nourishing yin and retreating yang should be administered.
At the initial stage of measles, tidal fever is most desirable. During the eruption phase and after it has subsided, the absence of fever is desirable. If tidal fever persists from the beginning until the end of the eruption, or if there is an inability to eat, cough, thirst, or phlegm symptoms, all these belong to blood deficiency and blood heat. Since measles belongs to the yang category, blood is often depleted by deficiency. Nourishing yin and tonifying blood will naturally eliminate the heat. This is the meaning of "nourishing yin to retreat yang." It is appropriate to use Siwu Tang (Four Substance Decoction) (see Article 25), modified according to symptoms. For thirst, add Ophiopogonis Radix (Maidong), Trichosanthis Radix (Tianhuafen), or Rhinocerotis Cornu juice (Xijiao). For cough, add Benincasae Semen Exsiccatum cum Melle (Gualou Shuang) and Armeniacae Semen Amarum Exsiccatum (Xingren Shuang). For phlegm, add Fritillariae Bulbus (Beimu) and Citri Reticulatae Pericarpium (Chenpi). For wheezing, add Sinapis Semen (Jiezi) and Lepidii Semen (Tingli). Generally, it is advisable to add Scrophulariae Radix (Yuanshen), Phellodendri Cortex (Huangbai), and other herbs such as Bupleuri Radix (Chaihu - *Note: text says Guopi which usually refers to Cortex Lycii/Digupi*), Paeoniae Radix Alba (Baishao - *Note: text implies Digupi/Goubi*), Scutellariae Radix (Huangqin), and Phellodendri Cortex (Huangbai) for treatment. One must strictly avoid using Ginseng Radix et Rhizoma (Renshen), Pinelliae Rhizoma Preparatum (Banxia), and Atractylodis Macrocephalae Rhizoma (Baizhu).
Zhu stated: Constant tidal fever indicates either blood deficiency or blood heat. Nourishing yin and tonifying blood is the best treatment method. The modifications are also consistent with the principles.
Internal blazing of heart fire causes irritability and dryness; urgently one should purge fire and clear the heart source. If due to chronic illness and deficiency of primal qi, the method is to nourish yin, and the illness will recover.
Measles inherently involves fire pathogen, which is governed by the Hand-Shaoyin Heart Meridian. Internal blazing of heart fire causes irritability and restlessness. If the fire pathogen in measles is too severe, causing irritability, thirst, and constipation, leading to the failure of the rash to erupt, the condition is extremely critical. It is appropriate to clear the heart, purge fire, and clear the lung metal. Use Qingyang Tang (Clear Yang Decoction) (see Article 9), removing Cimicifugae Rhizoma (Shengma), Platycodonis Radix (Jiegeng), Glycyrrhizae Radix et Rhizoma (Gancao), and Zingiberis Rhizoma Recens (Shengjiang), while doubling the dosage of Ophiopogonis Radix (Maidong), Scutellariae Radix (Huangqin), and Scrophulariae Radix (Xuanshen). Administer three doses, and the rash will erupt. Alternatively, use Jiawei Renshen Baihu Tang (Modified Ginseng White Tiger Decoction) (see Article 29), removing Ginseng Radix et Rhizoma (Renshen), Glycyrrhizae Radix et Rhizoma (Gancao), and Coicis Semen (Jimi), adding Scutellariae Radix (Huangqin) and Scrophulariae Radix (Yuanshen) for treatment. If it is a person with chronic illness, deficient in primal qi, or developing irritability and thirst, with the rash failing to resolve and stagnating in the skin, this is due to blood deficiency. In this case, the previous two formulas should not be used; instead, Yangyin Tang (Nourish Yin Decoction) should be used. This embodies the principle of "nourishing yin to harmonize yang."
Zhu stated: Irritability, thirst, and constipation leading to the failure of the rash to erupt is also one of the most dangerous aspects of measles. Knowing the methods of purging fire and clearing the lungs ensures safety even in dangerous situations. Regarding the Qingyang Tang and Modified Ginseng White Tiger Decoction shown in this article, they both contain dispersing herbs, which makes them excellent.
Yangyin Tang (Nourish Yin Decoction)
Prepared Rehmanniae Radix (Shudihuang)
Arctii Fructus (Niubangzi), stir-fried and ground (8 fen each)
Angelicae Sinensis Radix (Danggui)
Paeoniae Radix Alba (Baishaoyao)
Ophiopogonis Radix (Maidong) (7 fen)
Schizonepetae Spica (Jingjie) (3 fen)
Ligustici Chuanxiong Rhizoma (Chuanxiong)
Menthae Haplocalycis Herba (Bohe) (2 fen each)
Scrophulariae Radix (Yuanshen)
Forsythiae Fructus (Lianqiao) (5 fen each)
Two doses, decocted in water and taken orally. For the subsequent dose, add Coptidis Rhizoma (Huanglian) 2.5 li.