《周礼》，周公所以治天下者，无一事不备。至于医师，特令上士为之。下逮于鸟兽，亦有医。以是知百家
技艺，皆圣人之所创制，民生之不可一日无者。其为经纶参赞之功，至矣。今世医亦有官，而四方之为医者不少，
如史传纪载，未之或闻。欲求平正通达之医，亦不数觏。良由学业不精，故斯道日晦。吾友叶君子雨，敏而好
学，中年频遭家难，多误于庸工之手，慨然有济世之志。广搜医籍，闭户十年，深造轩岐之奥，着述甚富。昨以
《痧疹辑要》一种见示，伏读再过。其辨证论因，折衷中外，于前人根据违附会之说，立为剖断；而论三焦及同
身取寸之义，发前人所未发，尤为名言至理，超轶古今。可谓济世之书也，可谓传世之书也。爱付于民，公诸海
内，是为序。
光绪庚寅暮春之初四明北亭李振霆撰
痧疹一证，汉魏经方不载。唐宋以降，亦未有论及者。前明罗田万氏，稍稍阐明其义，而语焉不详，难执为
法。近代诸家，间有精论，多散见痘书之末，每与隐疹、时麻淆混，辨证不清，治法多舛，苦无专书故也。余甚
悯焉。戊子之冬，寒夜挑灯，涉猎旧籍，不揣固陋，钩往哲之精华，抉先贤之奥旨，汇而成帙，间附一得之愚，
颜之曰《痧疹辑要》。未敢言有功斯世，或于业是科者未必无小补云尔。
光绪庚寅春叶霖序于石林书屋
《周礼》记载，周公治理天下的方法，没有哪一件事是不完备的。对于医师一职，特别规定由上士（古代官职等级，此处指地位较高、学识较深的人）来担任。即便是对待鸟兽，也有专门的兽医。由此可知，百家技艺，都是圣人创立制定的，是百姓生活一天也不能缺少的。它们在经纶世务、参赞化育方面的功劳，真是到了极点啊。
当今时代的医生也有官方职位，而且各地行医的人不少，但像史书传记那样记载名医事迹的情况，却很少听说。想要遇到平正通达的好医生，也不容易见到。这大概是因为学业不精深，所以医学之道日益晦暗不明。我的朋友叶君子雨先生，聪慧且喜好学习，中年时频繁遭遇家庭变故，多次被庸医误治，于是感慨立志要救济世人。他广泛搜集医籍，闭门苦读十年，深入探究黄帝内经与岐伯（代指中医经典理论）的奥妙，著述非常丰富。最近他将《痧疹辑要》一书展示给我，我反复阅读。书中对辨证求因的分析，折衷于中外学说，对于前人那些依据不足或牵强附会的说法，进行了明确的剖析和判断；而对于三焦（人体上、中、下三个部位及其功能系统）以及同身寸（以患者自身身体部位为基准的针灸度量单位）的意义，阐发了前人未曾提及的观点，尤其是其中的名言至理，超越古今。这真可以称得上是救济世人的书，也可以称得上是流传后世的著作。因此将其刊印出版，公之于天下，这就是序言。
光绪庚寅年暮春之初，四明北亭李振霆撰写。
痧疹这一病症，汉代和魏代的经典方剂书中没有记载。唐宋以后，也没有人专门论述它。前朝明代罗田人万氏，稍微阐明了一些义理，但语焉不详，难以作为诊疗法则。近代各家医家，偶尔有精辟的论述，大多散见于痘症书籍的末尾，常常与隐疹（一种皮肤出疹性疾病）、时麻（流行性麻疹）混淆不清，辨证不明确，治疗方法多有错误，这是因为缺乏专门著作的缘故。我很为此感到怜悯。戊子年冬天，寒夜挑灯，翻阅旧籍，不顾自己见识浅陋，摘取古代哲人的精华，发掘先贤的深奥旨意，汇编成册，偶尔附上自己的一点愚见，命名为《痧疹辑要》。不敢说对世间有功，或许对于从事这一科治疗的医生来说，未必没有小小的补益吧。
光绪庚寅年春天，叶霖于石林书屋作序。
The *Rites of Zhou* records that the methods used by the Duke of Zhou to govern the world were comprehensive in every aspect. Regarding physicians, it was specifically stipulated that they should be appointed from among the "Shangshi" (Upper Scholars, a high-ranking official class indicating deep learning and status). Even for birds and beasts, there were veterinary practitioners. From this, we can know that the skills of the hundred schools of thought were all created and established by sages; they are indispensable for the livelihood of the people for even a single day. Their merit in managing state affairs and assisting in the transformation of nature is truly supreme.
In the current era, physicians also hold official positions, and there are many practitioners in various regions. However, records of famous doctors in historical biographies are rarely heard of. It is not easy to encounter physicians who are upright, thorough, and well-versed. This is likely due to the lack of profound academic study, causing the Dao of medicine to become increasingly obscure. My friend, Mr. Ye Ziyu, was intelligent and fond of learning. In his middle age, he frequently suffered family disasters and was often misdiagnosed and mistreated by incompetent doctors. Consequently, he sighed with determination to save the world. He extensively collected medical texts, closed his door for ten years to study deeply, and explored the mysteries of Huangdi Neijing and Qibo (referring to traditional Chinese medical classics). His writings were abundant. Recently, he showed me his work, *Shazhen Jiyao* (Essentials of Gathering on Scarlatiniform Eruptions), which I read repeatedly. The book analyzes syndrome differentiation and seeks the cause, synthesizing both Chinese and foreign perspectives. It clearly critiques and judges theories from predecessors that were based on insufficient evidence or forced interpretations. Furthermore, it elucidates the meanings of the Sanjiao (Triple Burner: the functional systems of the upper, middle, and lower body cavities) and Tongshen Cun (Same-Body Cun: acupuncture measurement units based on the patient's own body proportions), expounding upon insights previously unmentioned by predecessors. These are particularly profound truths and principles that transcend ancient and modern times. It can indeed be called a book to benefit the world, and a book to be passed down through generations. Therefore, it is printed and made public to the world. This is the preface.
Written by Li Zhenting of Beiting, Siming, at the beginning of late spring in the Gengyin year of the Guangxu reign.
The condition of Shazhen (scarlatiniform eruptions/epidemic exanthems) is not recorded in the classic prescriptions of the Han and Wei dynasties. After the Tang and Song dynasties, no one discussed it either. During the Ming Dynasty, Wan Shi from Luotian slightly clarified its principles, but the explanation was vague and difficult to use as a standard method. In recent times, some experts have provided refined discussions, but these are mostly scattered at the end of books on smallpox. They are often confused with Yin Zhen (hidden rashes) and Shi Ma (seasonal measles), leading to unclear syndrome differentiation and frequent errors in treatment methods, primarily due to the lack of specialized monographs. I felt great pity for this situation. In the winter of the Wuzi year, by lamplight on a cold night, I browsed old texts. Not daring to let my limited knowledge hinder me, I extracted the essence of ancient philosophers and uncovered the profound intentions of former sages, compiling them into a volume. Occasionally adding my own humble insights, I titled it *Shazhen Jiyao*. I dare not claim it has merit to the world, but perhaps it may offer some minor assistance to those practicing this specialty.
Preface by Ye Lin at Shilin Study, Spring of the Gengyin year of the Guangxu reign.