凡疹宜清金降火，不致金受火克，否则肺之母受病，必致变症多般，俱用后药降之可也。
柴胡 橘红 黄芩 枳壳 花粉 栝蒌仁 山栀 杏仁 陈皮 苏子 竹叶
汗加知母，舌胎重加黄芩，骨蒸加地骨皮，骨节疼痛加石菖蒲，吐血加黄栀（炒焦）、黄芩。
凡疹是脾肺之毒，倘用山栀不足，须用石膏。按石膏不必拘多少，只看病如何。
凡疹发不透而喘者，加葶苈、百部、白果、茯苓。
凡疹见风罩没，未得清爽者，又宜和解再入升散之药，虽不复出亦可痊愈。（和解散清毒饮。）
凡疹三朝出不甚者，毒瓦斯内攻，声音不出，咳嗽痰涎，大便秘结，服此方神效；蒌仁二两，炒黄芩四钱。
如热甚，加一两枳壳、知母、桑皮、花粉、玄参、山栀、杏仁、柴胡、钩藤、石菖
蒲、天麻、竹叶、灯草，水煎服。如此之症，二日必愈。
疹后作泻，烦渴者白虎汤加苍术、知母、石膏、甘草。
疹后干呕者宜解毒汤，黄连、黄芩、黄柏、山栀，俱用酒炒。
疹后呕吐不止者，用陈皮、竹茹、石膏。
总之，疹与痘不同色，痘怕太红，防破。疹喜统红，不可紫黑。但所虑者疹不出尽，若出尽而毒便
散。故治疹者于发时，当察天时寒暄以药发之。
发散方，表出而愈。复花、前胡、桔梗、菖蒲、川芎、天麻、麻黄、桂枝、枳壳。
凡疹便血、吐血、衄血不止者，另用犀角地黄汤（生地、犀角、丹皮、赤芍）合解毒散。
凡孕妇出疹，宜四物汤加白术、黄芩、苏叶、砂仁。
凡疹不进饮食者，但得麻色淡红润泽亦无害也，此乃毒瓦斯未解，内蕴实热，故不食耳。
凡风寒感冒重者，毛孔如粟状，额青足冷，身热无汗，至六七日或十余日尚不见点，有外症咳嗽，
鼻流清涕，眼胞微肿，决定是疹，不可妄治，宜先用麻黄汤发散，则疹自出矣。
大无比散∶
粉草（一两） 飞滑石（六两） 飞辰砂（三钱） 飞雄黄（一钱）
小无比散∶
粉草（五钱） 飞滑石（六钱） 寒水石（五钱） 飞石膏（一两） 广郁金（七分）
上二散研末服，凡疹喘嗽气急面赤者，用二散，每服大一钱，小六分，毒从小便出，热退为度。
稀 疹经验方∶
用丝瓜一个，风干，岁除日放在新瓦面上 灰，摊地上，去火气，研末，以百沸汤冲服，每岁如此，
服至三四次，小儿永不患麻疹矣。（按∶既有牛痘种法，小儿可免痘患，又有此善方以稀 疹，育子者
洵堪奉为希世之宝也。）
凡是麻疹，应当清肺降火，以免肺金受到心火的克制；否则，作为肺之母的脾脏也会受病，必然导致各种变证，都可以使用后面的方药来降火治疗。
柴胡、橘红、黄芩、枳壳、天花粉、瓜蒌仁、山栀、杏仁、陈皮、苏子、竹叶。
如果有汗出症状，加知母；舌苔厚腻加重，加黄芩；有骨蒸潮热症状，加地骨皮；关节疼痛，加石菖蒲；吐血，加炒焦的山栀和黄芩。
凡是麻疹，都是脾肺之毒，如果单用山栀力量不足，必须使用石膏。按石膏的使用不必拘泥于固定剂量，只看病情如何而定。
凡是麻疹发出但不透彻且伴有气喘的，加葶苈子、百部、白果、茯苓。
凡是麻疹因受风而隐没不见，未能透发清爽的，又宜采用和解法，再加入升散的药物，即使不再复出也能痊愈。（可用和解散或清毒饮。）
凡是麻疹三天后发出得不明显的，说明毒气内攻，声音不出，咳嗽痰多，大便秘结，服用此方效果神奇：瓜蒌仁二两，炒黄芩四钱。
如果热势很盛，加一两枳壳、知母、桑白皮、天花粉、玄参、山栀、杏仁、柴胡、钩藤、石菖蒲、天麻、竹叶，水煎服。这样的病症，两天必定痊愈。
麻疹后出现腹泻，伴有烦躁口渴的，用白虎汤加苍术、知母、石膏、甘草。
麻疹后出现干呕的，宜用解毒汤，黄连、黄芩、黄柏、山栀，均用酒炒制。
总之，麻疹与痘疹颜色不同，痘疹怕太红，防止破溃；麻疹喜欢统体红润，不可呈紫黑色。但所担忧的是麻疹不能透发尽净，若能透发尽净，毒气便会消散。所以治疗麻疹的人在发病时，应当观察天气的寒暖变化，用药发散驱邪。
发散方：表邪解除则痊愈。包含：复花（款冬花）、前胡、桔梗、菖蒲、川芎、天麻、麻黄、桂枝、枳壳。
凡是麻疹出现便血、吐血、鼻衄不止的，另用犀角地黄汤（生地、犀角、丹皮、赤芍）合解毒散。
凡是麻疹期间不进饮食的，只要面色呈现淡红润泽也是无害的，这是因为毒气未解，体内蕴藏实热，所以不想吃东西罢了。
凡是风寒感冒严重的，毛孔如粟米状，额头青筋显露，脚冷，身体发热无汗，到了六七天或十余天还看不到疹点，有外在症状如咳嗽、流清涕、眼睑微肿，决定是麻疹，不可胡乱治疗，宜先用麻黄汤发散，那么麻疹自然就会出来。
大无比散：
粉草（一两） 飞滑石（六两） 飞辰砂（三钱） 飞雄黄（一钱）
小无比散：
粉草（五钱） 飞滑石（六钱） 寒水石（五钱） 飞石膏（一两） 广郁金（七分）
以上两种散剂研成末服用，凡是麻疹气喘咳嗽、气急面红的，用这两种散剂，每次服用大无比散一钱，小无比散六分，使毒气从小便排出，以热退为度。
稀疹经验方：
用一个丝瓜，风干，在除夕日放在新瓦面上，置于灰烬中，摊在地上，去掉火气，研成末，用滚开水冲服，每年如此，服用三四次，小儿就永远不会患麻疹了。（按：既然已有牛痘接种法，小儿可免除痘患，又有此善方来预防稀疹，养育子女的人确实应当奉为稀世之宝。）
In all cases of measles (Rash Disease), it is advisable to clear the Lung Metal and descend Fire, so as to prevent the Lung from being controlled by Heart Fire; otherwise, the Spleen, which is the Mother of the Lung, will also be affected, inevitably leading to various complications. The following prescriptions can be used to descend Fire.
Chai Hu (Bupleuri Radix), Ju Hong (Citri Reticulatae Pericarpium Rubrum), Huang Qin (Scutellariae Radix), Zhi Ke (Aurantii Fructus Immaturus), Hua Fen (Trichosanthis Radix), Gua Lou Ren (Trichosanthis Semen), Shan Zhi (Gardeniae Fructus), Xing Ren (Armeniacae Semen Amarum), Chen Pi (Citri Reticulatae Pericarpium), Su Zi (Perillae Fructus), Zhu Ye (Bambusae Folium).
If sweating is present, add Zhi Mu (Anemarrhenae Rhizoma); if the tongue coating is thick and greasy, increase the dosage of Huang Qin; for bone-steaming fever, add Di Gu Pi (Lycii Cortex); for joint pain, add Shi Chang Pu (Acori Tatarinowii Rhizoma); for hemoptysis, add stir-fried Shan Zhi and Huang Qin.
Measles are essentially toxins of the Spleen and Lung. If Shan Zhi alone is insufficient, Shi Gao (Gypsum Fibrosum) must be used. The dosage of Shi Gao should not be rigidly fixed but determined according to the severity of the condition.
For measles that fail to erupt fully accompanied by wheezing, add Ting Li Zi (Lepidii Semen), Bai Bu (Stemonae Radix), Bai Guo (Ginkgo Semen), and Fu Ling (Poria).
When measles are obscured by wind and fail to emerge clearly, a harmonizing method combined with ascending and dispersing herbs should be employed. Even if they do not reappear, recovery is possible. (Use He Jie San or Qing Du Yin.)
If measles have not emerged significantly after three days, indicating internal attack of toxins, hoarseness, cough with phlegm, and constipation, this prescription yields miraculous results: Gua Lou Ren (2 liang), Chao Huang Qin (4 qian).
If heat is severe, add Zhi Ke (1 liang), Zhi Mu, Sang Bai Pi (Mori Cortex), Hua Fen, Xuan Shen (Scrophulariae Radix), Shan Zhi, Xing Ren, Chai Hu, Gou Teng (Uncariae Ramulus cum Uncis), Shi Chang Pu, Tian Ma (Gastrodiae Rhizoma), Zhu Ye, and Deng Cao (Junci Medulla). Decoct in water and take orally. Such conditions will surely resolve within two days.
For diarrhea following measles accompanied by irritability and thirst, use Bai Hu Tang (White Tiger Decoction) added with Cang Zhu (Atractylodis Rhizoma), Zhi Mu, Shi Gao, and Gan Cao (Glycyrrhizae Radix et Rhizoma).
For dry retching after measles, use Jie Du Tang (Detoxification Decoction) containing Huang Lian (Coptidis Rhizoma), Huang Qin, Huang Bo (Phellodendri Cortex), and Shan Zhi, all prepared with wine frying.
For persistent vomiting after measles, use Chen Pi, Zhu Ru (Bambusae Caulis in Materia Medica), and Shi Gao.
In summary, the color of measles differs from smallpox. Smallpox fears excessive redness to prevent ulceration, whereas measles prefer uniform redness and must not turn purple or black. The concern lies in incomplete eruption; if erupted fully, toxins disperse. Therefore, when treating measles, one must observe climatic changes (cold or warm) and use herbs to induce dispersion.
Dispersion Prescription: Once the exterior is resolved, health returns. Ingredients include: Fu Hua (Kalanchoes Flos / Sonchus Flos - note: context implies warming/dispersing herb, likely Ku Dong Hua or similar local variant, here transliterated as Fu Hua), Qian Hu (Peucedani Radix), Jie Geng (Platycodonis Radix), Chang Pu (Acori Tatarinowii Rhizoma), Chuan Xiong (Ligustici Chuanxiong Rhizoma), Tian Ma, Ma Huang (Ephedrae Herba), Gui Zhi (Cinnamomi Ramulus), and Zhi Ke.
For continuous bleeding from stool, vomit, or nosebleeds during measles, separately use Xi Jiao Di Huang Tang (Rhino Horn and Rehmannia Decoction - ingredients: Sheng Di Huang, Xi Jiao, Mu Dan Pi, Chi Shao Yao) combined with Jie Du San.
For pregnant women contracting measles, use Si Wu Tang (Four Substances Decoction) added with Bai Zhu (Atractylodis Macrocephalae Rhizoma), Huang Qin, Su Ye (Perillae Folium), and Sha Ren (Amomi Fructus).
For patients refusing food during measles, if the complexion shows a pale red luster, it is harmless. This indicates unresolved toxins and internal excess heat causing anorexia.
For severe cold-wind invasion presenting with millet-like pores, blue forehead, cold feet, fever without sweat, and no rash appearing after 6-7 or more than 10 days, accompanied by cough, clear nasal discharge, and slightly swollen eyelids, it is definitely measles. Do not treat recklessly. First use Ma Huang Tang (Ephedra Decoction) to disperse the exterior, allowing the rash to emerge naturally.
Da Wu Bi San (Great Incomparable Powder):
Fen Cao (Licorice Root, 1 liang), Fei Hua Shi (Prepared Talcum, 6 liang), Fei Chen Sha (Prepared Cinnabar, 3 qian), Fei Xiong Huang (Prepared Realgar, 1 qian).
Xiao Wu Bi San (Small Incomparable Powder):
Fen Cao (5 qian), Fei Hua Shi (6 qian), Han Shui Shi (Calcitum, 5 qian), Fei Shi Gao (1 liang), Guang Yu Jin (Curcumae Radix, 7 fen).
Grind the above two powders and take orally. For measles with wheezing, cough, rapid breathing, and flushed face, use these powders: 1 qian of Da Wu Bi San or 6 fen of Xiao Wu Bi San per dose. This promotes toxin excretion via urine and stops fever.
Experience Formula for Mild Measles:
Take one loofah sponge, air-dry it, place it on a new tile surface on New Year's Eve, bury it in ash, spread on the ground to remove fire qi, grind into powder, and take with boiling water. Repeat annually. After 3-4 courses, children will never contract measles. (Note: With the advent of cowpox vaccination preventing smallpox, this excellent formula prevents mild measles, making it a precious treasure for parents.)