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I have heard since childhood that there are incurable conditions among carbuncles and sores, named "Yin Fa" (Yin Eruption). When I was five or six years old, my uncle's son, Mr. Zijing, died from "Gu Cao Feng" (Bone Trough Wind, a type of mandibular osteomyelitis). When I asked the elders, they said: "If prolonged, it becomes Lao Zhai" (Consumption/Tuberculosis). In the year Jiawu, Mr. Ziren suffered from Gu Cao Feng. Initially, the condition was very severe, but later, following the methods in *Waike Zhengzhi Quansheng* (Complete Treatment of Surgical Diseases), he recovered promptly. I borrowed this book to read it and came to know that Yang manifestations are Carbuncles (Hong Zhong), while Yin manifestations are Sores (Du Ju). Gu Cao Feng also belongs to the category of Yin Sores and is not caused by Consumption. It became Consumption only because cooling medicines were taken after onset, prolonging the illness. People in the world know the name "Yin Fa" but do not understand its treatment, which is indeed lamentable.

Just then, Mr. Qin Lipu had another version of the book in his family collection. I used it for comparative collation; both versions had their merits and demerits. Obvious textual errors were corrected. Occasionally, some corrections still left the meaning unclear, and some doubts remained uncorrected. For example, regarding the treatment after the rupture of a large Carbuncle, both texts state: "For those with weak constitutions and advanced age, administer Ginseng Radix et Rhizoma Rubra [Renshen], Astragali Radix [Huangqi], and Glycyrrhizae Radix et Rhizoma [Gancao], all honey-fried." However, promoting toxin expulsion should avoid honey-frying, as detailed earlier. The sudden mention here likely follows the context of "pain ceased, toxin dispersed, swelling subsided, color turned red and vibrant." That is, even for those with weak constitutions and advanced age, honey-fried herbs can only be used at this stage, never early on. Now it is revised to: "For those with weak constitutions and advanced age, initially administer Renshen, Huangqi, and Gancao, and subsequently use honey-fried ones," so as not to mistakenly believe that deficiency patterns at the initial stage should use honey-fried herbs.

Regarding item 4 of the treatment method for Scrofula (Luo Li): "It is exactly the 'foot bone' under the hand." The other version states: "It is exactly the protruding bone under the hand." The "foot bone" refers to the high bone on the outer side of the dorsum of the foot. The "protruding bone" refers to the sharp bone behind the palm. Since the disease site is in the throat and the hand is closer, we follow the other version. However, the Foot-Yangming Stomach Meridian also runs along the throat, descends along the anterior lateral aspect of the lower leg, and reaches the dorsum of the foot. Both formulas, Dingling San (Calabash and Scorpion Powder) and Liuhe San (Six Harmonies Powder), contain "Gua Xie," while other formulas write either "Gua Xie" or "Xue Xie." Consulting ancient medical books, some write "Gua'er Xue Xie," indicating that "Xie" here is a typo for "Jie." Just as Realgar is also known as Yao Huang, and later collections clarify this, "Gua Jie" has no textual basis, nor does the original supplement mention "Gua Jie." Therefore, it is now uniformly changed to "Xue Jie" (Draconis Sanguis). Calomelas (Qing Fen) is non-toxic, yet under the entry for Coptidis Rhizoma (Huanglian), it says it resolves Calomelas toxicity, creating a contradiction. Consulting the *Bencao* (Materia Medica), it also states non-toxic, but notes it is toxic and resolvable by Huanglian. Thus, "non-toxic" is changed to "toxic" to avoid confusion. Achyranthis Bidentatae Radix (Niuxi) treats pain in the Jing (urethra). In the other version, "Jing" is sometimes changed to "Jing" (tibia). According to analysis: Pain in the Jingzhong refers to pain in the urinary tract. Saying only "Jing" seems not to refer to "Jingzhong." Yet the *Bencao* lists "pain in Jingzhong" among its indications; could the character "Zhong" have been omitted? In surgical formula rhymes, "Gui Xin Hua Fen Jie Jian" (Angelica Sinensis, Scutellaria Baicalensis, Angelicae Dahuricae Radix, Poria, and Licorice Nodes Decoction), or "Mahuang Qinghao Gancao" (Ephedra Herba, Artemisia Annua Herba, and Glycyrrhiza), all mention using "Jie" (nodes); is this referring to Gancao Jie (Licorice Nodes)? In the Lock-Throat Formula Rhyme, Glycyrrhiza is one qian each, while the other version says two qian. The *Bencao* states Danggui (whole root) invigorates blood, while this book says it stabilizes blood. These matters are not dared to be arbitrarily inferred.

My cousin, Shi Qingfu, purchased this book in Wu Men (Suzhou), which was the copy collected by Mr. Lipu. Qingfu also found this book in old books at a bookstore, different from the Wu Men copy, and wanted to buy it to show me; it turned out to be the copy collected by Mr. Ziren. Reprints are based on these two copies. With repeated copying and transmission, errors increased, making them less reliable. The original edition was printed in the 5th year of Qianlong. Mr. Ziren's copy was reprinted in the 5th year of Jiaqing. Mr. Lipu's copy's printing year is unknown. This book has circulated for over a hundred years, yet surgeons have never seen it, why? A girl surnamed Hu suffered from a long-standing illness that failed to respond to treatment. Following the methods of this book, she recovered. Since it was effective, there was a desire to print my collated version to spread it widely. Therefore, I took the two copies again, strictly proofread them, and sent them to press. I record the beginning and end here, along with my doubts, to consult with experts in medicine.

Written by Wang Hao, styled Mingjin, on the first day of the seventh month in the Xin Chou year, the 21st year of Daoguang.