缪仲淳曰∶脑者诸阳之会，而为髓之海，其位高，其气清。忽下浊者，其变也。东垣云∶上焦元气不足，
则脑为之不满。经云∶胆移热于脑为鼻渊。夫髓者至精之物，为水之属；脑者至阳之物，清气所居。今为浊气
邪热所干，遂下臭浊之汁，是火能消物，脑有所伤也。治法先宜清肃上焦气道，以镇坠心火，补养水源，此其
大略耳。药多取夫辛凉者，辛为金而入肺，有清肃之义，故每用以升散上焦之邪，如薄荷、荆芥、甘菊、连
翘、升麻、粘子、天麻之属；镇坠心火，补养水源，如犀角、人参、天冬、麦冬、五味、朱砂、甘草、山药、
生地、茯苓、丹皮之属。然须兼理乎肺肝，盖鼻乃肺之窍，而为脑气宣通之路，又治乎上焦而行清肃之令；胆
为春升少阳之气，与厥阴为表里，而上属于脑。戴人有云∶胆与三焦寻火治。《内经》谓胆移热所干，义亦明
矣。理肺用桑皮、粘子、桔梗、二冬、花粉、竹沥，清肝胆以柴胡、白芍、羚
羊角、竹茹、枣仁、川芎。或者又谓世人多用辛温辛热之药取效，以辛热甘温多能宣通发散，故病之微者亦
能奏效耳。此从治劫法，非不易常经，明者察之。
缪仲淳曰∶痧疹者，手太阴肺、足阳明胃二经之火热，发而为病者也。小儿居多，大人亦时有之。殆时气
瘟疫之类欤！其症类多咳嗽多嚏，眼中如泪，多泄泻，多痰，多热，多渴，多烦闷，甚则躁乱，咽痛唇焦，
神昏，是其候也。治法当以清凉发散为主，用药辛寒、甘寒、苦寒以升发之。惟忌酸收，最宜辛散。误施温补。
祸不旋踵。辛散如荆芥穗、干葛、西河柳、石膏、麻黄、鼠粘子，清凉如元参、花粉、薄荷、竹叶、青黛，甘
寒如麦冬、生甘草、蔗浆，苦寒如黄芩、黄连、贝母、连翘，皆应用之药也。
盖肺胃热邪，初发时必咳嗽，宜清热透毒，不得止嗽。疹后咳嗽，但用贝母、花粉、甘草、麦冬、苦梗、
元参、薄荷，以清余热、消痰壅则易愈，慎勿用五味子等收敛之剂。多喘，喘者热邪壅于肺故也，慎勿用定
喘药，惟应大剂竹叶石膏汤加西河柳两许，元参、薄荷各二钱。如天寒甚，痧毒为寒气郁于内不得透出者，加
蜜酒炒麻黄，一剂立止，凡热势甚者，即用白虎汤加西河柳，忌用升麻，服之必喘。多泄泻，慎勿止泻，慎用黄
连、升麻、干葛、甘草，则泻自止。疹家不忌泻，泻则阳明之热邪得解，是亦表里分消之义也。痧后泄泻及便
脓血，皆由热邪内陷故也，大忌止涩，惟宜升散，仍用升麻、干葛、白芍、甘草、扁豆，黄连，便脓血则加滑
石末，必自愈。痧后牙疳最危，外用雄黄、牛粪尖， 存性，研极
细，加真脑片一分，研匀吹之；内用连翘、荆芥、元参、干葛、升麻、黄连、甘草、生地，水煎，加生犀角汁一二匙
调服，缓则不可救。痧后元气不复，脾胃虚弱，宜用白芍、炙草为君，莲肉，扁豆、山药、青黛、麦冬、龙
眼肉为臣，多服必渐强，慎勿轻用参、术。痧后生疮不已，余热未尽故也，宜用银花、荆芥、元参、甘草、生
地、鳖虱、胡麻、川连、木通，浓煎饮之良。
痧疹不宜根据证施治，惟当治本。本者手太阴、足阳明二经之邪热也，解其邪热，则诸症自除矣。
缪仲淳说：脑是诸阳经交汇的地方，也是髓汇聚的海，位置高，气机清灵。如果突然向下流出浊物，这是病变的表现。李东垣说：上焦元气不足，脑就会感到空虚不满。医经说：胆的热邪移注于脑，形成鼻渊（鼻流浊涕）。髓是最精微的物质，属于水类；脑是最纯阳的物质，是清气居住的地方。现在被浊气和邪热侵犯，于是流出臭秽的浊汁，这是火能消蚀万物，脑受到损伤的缘故。治疗方法应当先清理肃降上焦的气道，以镇降心火，补养肾水（水源），这是大概的原则。药物多选用辛凉性质的，辛味属金而入肺，有清肃的含义，所以常用来升散上焦的邪气，如薄荷、荆芥、甘菊、连翘、升麻、牛蒡子、天麻之类；镇降心火，补养肾水，如犀角、人参、天冬、麦冬、五味子、朱砂、甘草、山药、生地、茯苓、丹皮之类。然而必须兼顾调理肺和肝，因为鼻是肺的窍道，也是脑气宣通的道路，又治理上焦而施行清肃的命令；胆具有春季升发的少阳之气，与厥阴肝互为表里，而上连属于脑。戴人（张从正）说：胆和三焦寻找火邪来治疗。《内经》说胆移热所侵犯，道理也很明白了。理肺用桑白皮、牛蒡子、桔梗、天冬麦冬、天花粉、竹沥；清肝胆用柴胡、白芍、羚羊角、竹茹、枣仁、川芎。有人又说世人多用辛温或辛热的药物取得疗效，因为辛热和甘温的药物大多能宣通发散，所以病情轻微的也能奏效。这是从治劫法（顺从病势以祛除病邪的方法），不是可以经常使用的常规方法，明智的人要仔细考察。
缪仲淳说：痧疹（麻疹等出疹性疾病）是手太阴肺经和足阳明胃经的火热之邪，发作而成的疾病。多见于小儿，大人也偶尔得病。这大概是时气瘟疫一类的疾病吧！其症状大多咳嗽多喷嚏，眼中流泪，多泄泻，多痰，多发热，多口渴，多烦闷，严重时躁动混乱，咽喉痛嘴唇焦裂，神志昏迷，这就是它的征候。治疗方法应当以清凉发散为主，用药用辛寒、甘寒、苦寒性质的药物来升发透疹。只忌讳酸收类药物，最适宜辛散类药物。误用温补药物，灾祸立刻降临。辛散药如荆芥穗、干葛、西河柳、石膏、麻黄、牛蒡子；清凉药如玄参、天花粉、薄荷、竹叶、青黛；甘寒药如麦冬、生甘草、蔗浆；苦寒药如黄芩、黄连、贝母、连翘，都是应该应用的药物。
因为肺胃热邪，初发时必定咳嗽，应当清热透毒，不能强行止咳。疹出后咳嗽，只用贝母、天花粉、甘草、麦冬、苦梗（桔梗）、玄参、薄荷，来清除余热、消除痰壅就容易痊愈，千万不要用五味子等收敛的药物。多喘息的，喘息是因为热邪壅塞在肺的缘故，千万不要用定喘药，只应当用大剂量的竹叶石膏汤加西河柳一两，玄参、薄荷各二钱。如果天气非常寒冷，痧毒被寒气郁结在体内不能透出的，加蜜酒炒制的麻黄，一剂就能立即停止。凡是热势严重的，就用白虎汤加西河柳，忌用升麻，服用升麻必然导致喘息。多泄泻的，千万不要止泻，慎用黄连、升麻、干葛、甘草，那么腹泻自然停止。患痧疹的人不忌讳腹泻，腹泻则阳明经的热邪得以解除，这也是表里分消的道理。痧疹后泄泻及大便脓血，都是由热邪内陷的缘故，绝对禁止使用涩肠止泻药，只宜升散，仍用升麻、干葛、白芍、甘草、扁豆、黄连，若大便脓血则加滑石末，必定自愈。痧疹后牙疳（牙龈溃烂坏死）最为危险，外用雄黄、牛粪尖（保留炭性），研成极细粉末，加入真冰片一分，研匀吹入患处；内服连翘、荆芥、玄参、干葛、升麻、黄连、甘草、生地，水煎煮，加入生犀角汁一二匙调服，延误则不可救治。痧疹后元气不复原，脾胃虚弱，宜用白芍、炙甘草为君药，莲肉、扁豆、山药、青黛、麦冬、龙眼肉为臣药，多服必渐渐强壮，千万不要轻易用人参、白术。痧疹后生疮不止，是因为余热未尽的缘故，宜用金银花、荆芥、玄参、甘草、生地、鳖虱（一种昆虫，此处指代特定药材或用法，依原文保留）、胡麻、川连、木通，浓煎饮用效果良好。
Miao Zhongchun said: The brain is the convergence point of all Yang meridians and the sea of marrow. Its position is high, and its Qi is clear. If turbid substances suddenly flow downward, this is a pathological change. Li Dongyuan stated: When the Yuan Qi (Original Qi) of the Upper Jiao (Upper Burner) is insufficient, the brain feels empty and unfulfilled. The Classics state: Heat from the Gallbladder transferring to the brain causes Bi Yuan (Nasal Sinusitis/Ozena). Marrow is the most refined substance, belonging to Water; the brain is the most pure Yang substance, the dwelling place of Clear Qi. Now, invaded by turbid Qi and pathogenic heat, foul and turbid fluid flows out. This indicates that Fire can consume matter, and the brain is injured. The treatment method should first focus on clearing and purifying the Qi mechanism of the Upper Jiao, suppressing Heart Fire, and nourishing Kidney Water (Source Water). This is the general principle. Medicines are mostly chosen for their acrid-cool properties. Acidity belongs to Metal and enters the Lung, possessing the meaning of purification; thus, they are often used to ascend and disperse pathogenic factors in the Upper Jiao, such as Bohe (Menthae Haplocalycis Herba), Jingjie (Schizonepetae Spica), Ganju (Chrysanthemi Flos), Lianqiao (Forsythiae Fructus), Shengma (Cimicifugae Rhizoma), Niubangzi (Arctii Fructus), Tianma (Gastrodiae Rhizoma); to suppress Heart Fire and nourish Kidney Water, such as Xijiao (Rhinocerotis Cornu - *Note: Substitute with legal alternatives in practice*), Renshen (Ginseng Radix), Tiandong (Asparagi Radix), Maidong (Ophiopogonis Radix), Wuweizi (Schisandrae Fructus), Zhusha (Cinnabar), Gancao (Glycyrrhizae Radix et Rhizoma), Shanyao (Dioscoreae Rhizoma), Shengdi (Rehmanniae Radix), Fuling (Poria), Danpi (Moutan Cortex). However, one must also regulate the Lung and Liver. The nose is the orifice of the Lung and the pathway for Brain Qi to communicate; it governs the Upper Jiao and executes the command of purification. The Gallbladder possesses the Shaoyang Qi of spring ascent, is interior-exterior related to Jueyin (Liver), and connects upward to the brain. Dai Ren (Zhang Congzheng) said: The Gallbladder and Sanjiao (Triple Burner) seek Fire for treatment. The *Neijing* states that invasion by Gallbladder heat clarifies this principle. To regulate the Lung, use Sangbai (Mori Cortex), Niubangzi, Jiegeng (Platycodonis Radix), Erdong (Tiandong and Maidong), Huafen (Trichosanthis Radix), Zhuli (Bambusae Succus); to clear the Liver and Gallbladder, use Chaihu (Bupleuri Radix), Baishao (Paeoniae Radix Alba), Lingyangjiao (Saigae Tataricae Cornu - *Note: Substitute with legal alternatives*), Zhuru (Bambusae Caulis in Taenia), Zaoren (Ziziphi Spinosomi Semen), Chuanxiong (Ligustici Chuanxiong Rhizoma). Some argue that people often achieve results using acrid-warm or acrid-hot medicines because acrid-hot and sweet-warm medicines can generally promote circulation and dispersion, so even mild diseases respond. This is the "Congzhi" method (treating by following the disease's nature to expel pathogens), not a standard routine method; wise practitioners should examine this carefully.
Miao Zhongchun said: Shazhen (Measles-like exanthematous diseases) are illnesses caused by the fire-heat of the Hand-Taiyin Lung Meridian and Foot-Yangming Stomach Meridian erupting. They occur mostly in children, but adults occasionally get them too. Are they not similar to seasonal qi epidemics? Their symptoms mostly include coughing, frequent sneezing, eyes tearing like weeping, frequent diarrhea, phlegm, fever, thirst, irritability, and in severe cases, restlessness and confusion, sore throat, scorching lips, and coma. These are its signs. The treatment method should primarily focus on cooling and dispersing, using acrid-cold, sweet-cold, and bitter-cold medicines to promote eruption. One must strictly avoid sour-astringent herbs and favor acrid-dispersing ones. Mistakenly applying warm-tonifying treatments will bring disaster swiftly. Acrid-dispersing herbs include Jingjiesui (Schizonepetae Spica), Gange (Puerariae Radix), Xihe Liu (Salicis Capreae Ramulus), Shigao (Gypsum Fibrosum), Mahuang (Ephedrae Herba), Niubangzi; cooling herbs include Xuanshen (Scrophulariae Radix), Huafen, Bohe, Zhuye (Phyllostachidis Folium), Qingdai (Indigo Naturalis); sweet-cold herbs include Maidong, Sheng Gancao (Raw Glycyrrhizae Radix et Rhizoma), Zhe Jiang (Saccharum Japonicum Juice); bitter-cold herbs include Huangqin (Scutellariae Radix), Huanglian (Coptidis Rhizoma), Beimu (Fritillariae Bulbus), Lianqiao. These are all applicable medicines.
Since Lung and Stomach pathogenic heat initially causes coughing, one should clear heat and vent toxins, not stop the cough forcibly. After the rash appears, if coughing persists, use only Beimu, Huafen, Gancao, Maidong, Kujie (Jiegeng), Xuanshen, Bohe to clear residual heat and eliminate phlegm congestion, leading to easy recovery. Strictly avoid astringent agents like Wuweizi. Frequent wheezing occurs because heat pathogen congests the Lung; do not use anti-asthmatic drugs. Instead, use a large dose of Zhuye Shigao Tang (Leaf and Gypsum Decoction) plus Xihe Liu (approx. 1 liang), Xuanshen and Bohe (2 qian each). If the weather is extremely cold, and Shazhen toxin is constrained internally by cold Qi preventing eruption, add Mahuang stir-fried with honey wine; one dose stops it immediately. For severe heat conditions, use Baihu Tang (White Tiger Decoction) plus Xihe Liu. Avoid Shengma, as it will cause wheezing. Frequent diarrhea should not be stopped; use Huanglian, Shengma, Gange, Gancao cautiously, and the diarrhea will stop naturally. Patients with Shazhen do not fear diarrhea; diarrhea allows the Yangming heat pathogen to resolve, reflecting the principle of resolving exterior and interior simultaneously. Diarrhea and bloody pus stools after Shazhen are due to heat pathogen sinking inward; absolutely forbid astringent antidiarrheals. Use ascending and dispersing methods with Shengma, Gange, Baishao, Gancao, Bian Dou (Dolichos Lablab Seed), Huanglian. Add Huashi (Talcum) powder for bloody pus stools; self-healing will occur. Dental gangrene (Ya Gan) after Shazhen is critical. Externally, use Xionghuang (Realgar), Niu Fen Jian (Tip of Cow Dung, charred), ground finely, mixed with Zhen Naopian (Ice Borneol), applied as powder. Internally, use Lianqiao, Jingjie, Xuanshen, Gange, Shengma, Huanglian, Gancao, Shengdi decocted in water, mixed with 1-2 spoons of fresh Xijiao juice. Delay leads to incurability. After Shazhen, if Yuan Qi does not recover and Spleen-Stomach is weak, use Baishao and Zhi Gancao (Honey-fried Licorice) as Sovereign herbs, with Lian Rou (Lotus Seed Flesh), Bian Dou, Shanyao, Qingdai, Maidong, Long Yan Rou (Longan Aril) as Minister herbs. Long-term use strengthens the body gradually. Do not lightly use Renshen and Baizhu. Sores persisting after Shazhen are due to incomplete resolution of residual heat. Use Yinhua (Lonicerae Japonicae Flos), Jingjie, Xuanshen, Gancao, Shengdi, Bieshi (Beetle/Insect - *specific traditional term*), Humaxia (Sesami Seed), Chuanlian (Coptis), Mutong (Akebiae Caulis) decocted thickly for drinking; this is effective.
Shazhen should not be treated merely according to symptoms, but by treating the root. The root is the pathogenic heat in the Hand-Taiyin Lung and Foot-Yangming Stomach meridians. Resolving this pathogenic heat eliminates all symptoms naturally.