夫疮疽丹肿之生，皆由阴阳不调，荣卫凝涩、气血不流之所生也。古人有言曰∶阳滞于
生疮，阴滞于阳则生疽。疮疽之生，有内有外，内生于脏腑胸腹之中，外则生于肤肉筋骨之
表，发无定处。夫郁滞之本，则因气血不流，蒸气不能外达，留滞而成内热，疮疽所生焉。
若初觉气血郁滞，皮肉结聚，肿而未溃，特可疏涤风热，通利脏腑一、二行，徐次诸汤 渍
，即得内消矣。不然，则治之稍慢，毒热不散，反攻其内，致令脓血之聚也。《内经》谓∶
治病必求于本。盖疮疽本乎中热之郁结不通也，其风邪寒气所聚也。治之宜温热之剂，和血
令内消也。辨之有法，须认风寒则肿硬色白，热毒则 肿色赤，以为异也。如有气已结聚，
不可论内消之法，宜用排脓托里之药，此皆先后之次也。
夫疮疡生于外，皆由积热蕴于内。《内经》谓∶血热肉败，荣卫不行，必将为脓，留于
，必将为败。盖疮疽脓溃烂之时，头小未破，疮口未开，或毒瓦斯不出，疼痛难任者，所以立
追蚀脓之方法，使毒外泄，而不内攻，恶肉易去，好肉易生也。若其疮 ，其血出不止者，
则未可 ；于疮上糁追蚀之药，待其熟可 方 。若其疮 之痛应心根者，亦不可强 之，
误触其疮，其 痛必倍，变证不无，不可不慎也！若疮疖脓成未破，于上薄皮剥起者，即当
用破头代针之剂安其上，以膏贴之。脓出之后，用搜脓化毒之药，取效如神矣。若脓血未尽
，便用生肌敛疮之剂，务其早愈；殊不知恶肉不尽，其疮早合，后必再发，不可不慎也！
疮疡、疽病和丹毒肿胀的发生，都是由于阴阳失调，营卫之气凝滞涩阻、气血运行不畅所导致的。古人有话说：阳气阻滞于阴分则生疮，阴气阻滞于阳分则生疽。疮和疽的产生，有在体内的，也有在体表的；在体内生于脏腑胸腹之中，在体表生于皮肤肌肉筋骨之外，发病位置没有固定之处。这种郁滞的根本原因，是由于气血运行不畅，蒸腾之气不能向外透达，停留积聚而化生内热，从而产生疮疽。
如果在初起时感觉气血郁滞，皮肉结聚，肿胀但尚未溃破，特别可以采用疏风清热的方法，通利脏腑一两次，再用各种汤药浸渍患处，就可以使病灶从内部消散。如果不这样做，治疗稍慢，毒热不能发散，反而向内攻伐，导致脓血积聚。《黄帝内经》说：治病必须探求根本。大概疮疽的根本在于中焦热邪的郁结不通，以及风邪寒气的聚集。治疗适宜用温热的药剂，调和血液使其从内部消散。辨别它有方法，必须认清：如果是风寒所致，则肿胀坚硬、颜色发白；如果是热毒所致，则肿胀且颜色发红，以此作为区别。如果气已经结聚成形，就不能讨论内消的方法，适宜使用排脓托里的药物，这都是先后次序的问题。
疮疡生于体外，都是由积热蕴藏在体内引起的。《黄帝内经》说：血热则肌肉败坏，营卫之气不行，必然化为脓液，留滞于经络，必然导致败坏。大概在疮疽脓液溃烂之时，疮头小未破，疮口未开，或者毒气不能排出，疼痛难以忍受的情况，所以确立追蚀脓液的方法，使毒邪向外排泄，而不向内攻伐，恶肉容易去除，好肉容易生长。如果疮口出血不止，则不可以进行追蚀；在疮上撒布追蚀的药物，等到脓熟可以切开时才切开。如果疮疖的疼痛牵连到心根部位，也不可以强行切开，误触其疮，疼痛必定加倍，变证不可避免，不可不谨慎啊！如果疮疖脓成但未破，上面薄皮剥起的，就应当用破头代针的药剂敷在上面，用膏药贴住。脓流出之后，使用搜脓化毒的药物，取得效果如神一般。如果脓血未尽，就使用生肌敛疮的药物，务必使其早日愈合；却不知道恶肉不尽，疮口过早闭合，后来必然再次发作，不可不谨慎啊！
The occurrence of sores, carbuncles, and erysipelas swelling is all caused by the disharmony of Yin and Yang, the stagnation and涩 (obstruction) of Ying and Wei (Nutritive and Defensive Qi), and the impaired flow of Qi and Blood. The ancients said: When Yang stagnates in Yin, sores arise; when Yin stagnates in Yang, carbuncles arise. The origin of sores and carbuncles can be internal or external; internally, they arise within the Zang-Fu organs and chest/abdomen; externally, they arise on the surface of skin, flesh, sinews, and bones, with no fixed location. The root of this stagnation lies in the impaired flow of Qi and Blood, where steaming Qi cannot reach the exterior, remaining stagnant to generate internal heat, thereby giving rise to sores and carbuncles.
If at the initial stage one perceives Qi and Blood stagnation, with clustering of skin and flesh, swelling but not yet ulcerated, it is particularly appropriate to dispel wind-heat and unblock the Zang-Fu organs one or two times, followed by soaking the affected area with various decoctions, which will lead to internal resolution. Otherwise, if treatment is slightly delayed, the toxic heat will not dissipate but instead attack inward, resulting in the accumulation of pus and blood. The *Neijing* states: "In treating disease, one must seek the root." Generally, the root of sores and carbuncles lies in the stagnation and obstruction of internal heat, as well as the aggregation of wind-cold pathogens. Treatment should employ warm-natured agents to harmonize the blood and facilitate internal resolution. Differentiation follows specific methods: one must recognize that if caused by wind-cold, the swelling will be hard and white in color; if caused by toxic heat, the swelling will be red in color, using this as the distinction. If Qi has already formed a solid mass, the method of internal resolution cannot be discussed; instead, drugs for draining pus and supporting the interior should be used. These represent the proper sequence of treatment.
Sores arising externally are all due to accumulated heat harbored internally. The *Neijing* states: "When blood is hot, flesh rots; when Ying and Wei do not circulate, pus will inevitably form, remaining in the collaterals, leading to decay." Generally, during the time when sores and carbuncles have pus and ulcerate, if the head is small and unbroken, the wound opening is not open, or the toxic vapors cannot exit, causing unbearable pain, the method of "chasing and eroding" pus is established to allow toxins to excrete outward rather than attack inward, facilitating the removal of foul flesh and the growth of healthy flesh. If bleeding from the sore does not stop, erosion/chasing should not be performed; applying chasing-erosion powder on the sore, wait until it is ripe and ready for incision before doing so. If the pain of the sore extends to the heart-root, one must not force an incision; accidentally touching the sore will double the pain, and adverse transformations are inevitable, so caution is essential! If a furuncle has formed pus but not broken, and the thin skin on top is peeling up, one should immediately apply a "head-breaking needle-replacement" agent on it and cover it with a plaster. After the pus drains, use drugs that search out pus and resolve toxicity, achieving miraculous effects. If pus and blood are not yet exhausted, but one uses drugs for generating flesh and closing sores, striving for early healing; one fails to realize that if foul flesh is not completely removed and the sore closes too early, it will inevitably recur later. Caution is absolutely necessary!