脉
阳濡弱，阴弦紧，更遇温气，变为温疫。左手脉大于右手，浮缓而盛，按之无力。
证
众人病一般者，乃天行时疫也。悉由气运郁发，迁正退位之所致也。
治
冬应寒而反温，春发温疫，败毒散主之；春应温而反凉，夏发燥疫，大柴胡汤主之；夏应热而反寒，秋
发寒疫，五积散主之；秋应凉而反淫雨，冬发湿疫，五苓散主之。凡温疫，切不可作伤寒症
治，而大汗大下也。但当从乎中治，而用少阳、阳明二经药，少阳小柴胡汤，阳明升麻葛根汤。
看所中阴阳，而以二方加减和治之，殊为切当。人参败毒散，
治四时温疫。通用羌活冲和汤，治温疫初感，一、二日间服之取汗，其效甚速。
方
凡入温疫之家，以麻油涂鼻孔中，则不传染。出以纸捻探鼻深入，令嚏之为佳。
一方以雄黄、苍术为细末，香油调敷鼻内。或用雄黄末，水调鼻内。虽与病患同卧，亦不相染。
宣圣辟瘟丹 腊月二十四日井花水，在平旦第一汲者是也。盛净器中，量人口多少，浸乳香至岁
朝五更时，暖令温。自幼至长，每人以乳香一小块，饮水一、二呷咽下，则一年不患时疫。
神圣辟瘟丹（诀云∶圣神辟瘟丹，留传在世间，正元焚一灶，疫疠自祛蠲）〔批〕
（按上方皆预防瘟疫之剂）
苍术（为君，倍用） 羌活 独活 白芷 香附 大黄 甘松 三奈 赤箭 雄黄（各等分）
上为末，面糊为丸，如弹子大，黄丹为衣，晒干，正月初一平旦时焚一炷，辟除一岁瘟疫邪气。
人参败毒散 治四时不正之气，冬应寒而反热，夏应热而反寒，春应温而反凉，秋应凉而反温，非其
时而有其气，故病者大小无异。大抵使人痰涎壅盛，壮热如火，头疼身痛，项强睛疼，声哑
腮肿，俗呼浪子瘟，或称虾蟆瘟。城市乡村，家户相类，悉根据本方加干葛。若寒热往来，必用小柴胡汤。（二
方俱见伤寒条下）
加味柴胡汤 治挟岚瘴溪源蒸毒之气，其状血乘上焦，病欲来
时，令人迷困，甚则发躁狂妄，亦有哑而不能言者，皆由瘀血攻心，毒涎聚胃。
柴胡 黄芩 半夏 人参 枳壳 大黄 甘草
上锉一剂，姜枣煎，空心服。哑瘴，食后服。
大力子汤 治大头天行病，腮颊颈项肿胀，头疼发热，证似伤寒。兼治哑瘴。
黄芩（酒洗，二钱） 黄连（酒炒，二钱） 桔梗（一钱五分） 甘草（一钱） 连翘（一
钱） 鼠粘子（炒研） 玄参（各一钱） 大黄（酒蒸，一钱五分） 荆芥（三分） 防风（三分）
羌活（三分） 石膏（一钱五分）
上锉一剂，生姜煎服。
治四时瘟疫，头痛发热，众人一般病者。（孙钝庵传） 黑砂糖一
盏，入姜汁二盏，化开，令病患服之。当时憎寒壮热，汗出立愈。
二圣救苦丸（万左川传） 治伤寒瘟疫。
大黄（四两，酒蒸） 牙皂（二两）
上末，面糊丸如绿豆大，每服四十丸，绿豆汤送下，大汗为效。
Pulse
Yang presents as soggy and weak (Ru Ruo), Yin presents as string-taut and tight (Xian Jin). If further exposed to warm qi, it transforms into Warm Epidemic (Wen Yi). The left hand pulse is larger than the right, floating, slow, and vigorous, but feels powerless upon deep pressure.
Symptoms
When the majority of people suffer from similar illnesses, this is Heavenly Movement Seasonal Epidemic (Tian Xing Shi Yi), a contagious disease spreading through the air. It is entirely caused by the stagnation and eruption of climatic fortune, resulting from the improper transition of seasonal positions (Qian Zheng Tui Wei).
Treatment
If winter should be cold but turns warm, causing Warm Epidemic in spring, Ren Shen Bai Du San (Ginseng Decoction for Overcoming Toxins) is the primary formula. If spring should be warm but turns cool, causing Dry Epidemic in summer, Da Chai Hu Tang (Major Bupleurum Decoction) is the primary formula. If summer should be hot but turns cold, causing Cold Epidemic in autumn, Wu Ji San (Five Accumulations Powder) is the primary formula. If autumn should be cool but turns rainy, causing Damp Epidemic in winter, Wu Ling San (Five-Ling Powder) is the primary formula. In all cases of Warm Epidemic, one must absolutely not treat it as Tai Yang Disease (Shang Han) and induce severe sweating or purgation. Instead, treatment should follow the "Middle" principle, using herbs from the Shaoyang (Lesser Yang) and Yangming (Bright Yang) meridians, such as Xiao Chai Hu Tang (Minor Bupleurum Decoction) for Shaoyang and Sheng Ma Ge Gen Tang (Kudzu Root and Cimicifuga Decoction) for Yangming. Based on whether the pathogen affects Yin or Yang, modify and harmonize these two formulas; this is highly appropriate. Ren Shen Bai Du San treats seasonal Warm Epidemics. Qiang Huo Chong He Tang is generally used for initial contraction of Warm Epidemic; taking it within one or two days to induce sweating yields very rapid results.
Formulas
Whenever entering the home of a patient with Warm Epidemic, applying sesame oil inside the nostrils prevents infection. Upon leaving, inserting a rolled paper wick deep into the nasal cavity to induce sneezing is beneficial.
Another method involves grinding Xiong Huang (Realgar) and Cang Zhu (Atractylodes Rhizome) into fine powder, mixing with sesame oil, and applying inside the nose. Alternatively, use only Xiong Huang powder mixed with water applied to the nose. Even sleeping in the same bed as the patient will not result in transmission.
Xuan Sheng Bi Wen Dan (Prophet's Plague-Repelling Pill): Collect well-water drawn at dawn on the 24th day of the twelfth lunar month (the first bucket of water). Store in a clean vessel. Soak Ru Xiang (Frankincense) according to the number of people until the early morning of the first day of the new year. Warm it slightly. From children to adults, each person swallows a small piece of Frankincense with one or two sips of water, ensuring they will not contract seasonal epidemics for a year.
Shen Sheng Bi Wen Dan (Divine Plague-Repelling Pill) [Note: These above formulas are all preventive agents against plague]
Cang Zhu (as Sovereign herb, doubled in dosage), Qiang Huo (Notopterygium Rhizome), Du Huo (Angelicae Pubescentis Radix), Bai Zhi (Angelicae Dahuricae Radix), Xiang Fu (Cyperus Rhizome), Da Huang (Rhei Radix et Rhizoma), Gan Song (Nardostachys Radix et Rhizoma), San Nai (Kaempferiae Rhizoma), Chi Jian (Achyranthes Root), Xiong Huang (Realgar) (all in equal parts).
Grind into powder, bind with wheat paste into pills the size of a bullet, coat with Huang Dan (Lead Monoxide), dry in the sun. On the first day of the first lunar month at dawn, burn one incense stick's worth to repel epidemic pathogens for the year.
Ren Shen Bai Du San: Treats irregular Qi of the four seasons. Winter should be cold but is hot; summer should be hot but is cold; spring should be warm but is cool; autumn should be cool but is warm. When non-seasonal Qi appears, patients of all ages present similarly. Generally, it causes phlegm-saliva congestion, high fever like fire, headache and body pain, stiff neck and painful eyes, hoarseness, and swollen cheeks. Commonly called Lang Zi Wen (Prodigal Son Plague) or Xia Ma Wen (Toad Plague). In cities and villages, households are affected similarly; all should base treatment on this formula adding Gan Ge (Kudzu Root). If there is alternating chills and fever, Xiao Chai Hu Tang must be used. (Both formulas are found under the Shang Han section.)
Jia Wei Chai Hu Tang: Treats conditions complicated by miasma and toxic vapors from mountain streams and valleys. The pathology involves blood attacking the Upper Jiao. Before the illness manifests, it causes confusion and lethargy; severely, it leads to restlessness and madness, or even mutism. This is due to blood stasis attacking the Heart and toxic saliva accumulating in the Stomach.
Chai Hu (Bupleuri Radix), Huang Qin (Scutellariae Radix), Ban Xia (Pinelliae Rhizoma), Ren Shen (Ginseng Radix), Zhi Ke (Aurantii Fructus), Da Huang (Rhei Radix et Rhizoma), Gan Cao (Glycyrrhizae Radix et Rhizoma).
Cut one dose, decoct with Sheng Jiang (Zingiberis Rhizoma) and Da Zao (Jujubae Fructus), take on an empty stomach. For Ya Zhang (Mutism Miasma), take after meals.
Da Li Zi Tang: Treats Da Tou Tian Xing Bing (Great Head Epidemic), characterized by swelling of the cheeks, jaw, and neck, headache, and fever, resembling Shang Han. Also treats Ya Zhang.
Huang Qin (Scutellariae Radix, wine-washed, 2 qian), Huang Lian (Coptidis Rhizoma, wine-fried, 2 qian), Jie Geng (Platycodonis Radix, 1.5 qian), Gan Cao (Glycyrrhizae Radix et Rhizoma, 1 qian), Lian Qiao (Forsythiae Fructus, 1 qian), Niu Bang Zi (Arctii Fructus, fried and ground), Xuan Shen (Scrophulariae Radix, 1 qian), Da Huang (Rhei Radix et Rhizoma, wine-steamed, 1.5 qian), Jing Jie (Schizonepetae Herba, 3 fen), Fang Feng (Saposhnikoviae Radix, 3 fen), Qiang Huo (Notopterygii Rhizoma et Radix, 3 fen), Shi Gao (Gypsum Fibrosum, 1.5 qian).
Cut one dose, decoct with Sheng Jiang, and take orally.
Treats seasonal plagues with headache, fever, and uniform symptoms among the populace. (Transmitted by Sun Dun'an) One cup of black sugar, mixed with two cups of ginger juice, dissolved and given to the patient. Immediate relief occurs with sweating after consuming this for chills and high fever.
Er Sheng Jiu Ku Wan (Two Sages' Life-Saving Pills) (Transmitted by Wan Zuochuan): Treats Shang Han and plagues.
Da Huang (Rhei Radix et Rhizoma, 4 liang, wine-steamed), Ya Zao (Gleditsiae Sinensis Fructus, 2 liang).
Grind into powder, bind with wheat paste into pills the size of mung beans. Take 40 pills per dose, washed down with mung bean soup. Effect is achieved when profuse sweating occurs.