人有对口之后，忽生小疮，先痒后痛，随至溃烂，人以为至凶之痈也，然而痈
生于对口者犹轻，而生于偏旁不胜对口者尤重。盖颈项之上，乃肾督之部位也。其
地属阴，所生痈疽多是阴疽而非阳痈也。阳疽必高突数寸，其色红肿发光，疼痛呼
号；若阴痈则不然，色必黑黯，痛亦不甚，身体沉重，困倦欲卧，呻吟无力，其疮
口必不突起，或现无数小疮口，以眩世人，不知从何处觅头。然而阴阳二毒，皆可
内消，何可令其皮破肿溃而后治之乎。至于内消之法，正不须分辩阴阳，惟既破溃
脓，阴阳不审而漫投药饵，则祸生顷刻。而内消之法，大约止消三味，名为三星汤∶
金银花（二两） 蒲公英（一两） 生甘草（三钱） 水煎服。二剂即便全消。阳症已破者，
仍以此方治之，不三服必脓尽肉生。若阴症大溃者，此方不可复投，改用七圣汤∶
人参（一两） 生黄 （一两） 当归（一两） 金银花（二两） 白术（一两） 生甘草（三钱）
肉桂（一钱） 水煎服。一剂而血止，二剂而肉生，三剂而口小，四剂而皮合，再服二剂全愈。
此方治各处痈毒凡低陷而不能收口者，无不神效，不止治对口之阴毒善收功也。
诚以阳症可以凉泻，而阴症必须温补故耳。
世有生痈疽于头顶者，始名脑疽，若对口偏口，俱非真正脑疽也。此疽九死一
生，然治之得法，俱可救也。大约生此疽者，皆肾火之沸腾也。盖脑为髓海，原通
于肾，肾无火则髓不能化精，肾多火则髓亦不能化精。岂特不能化精，随火之升降，
且化为毒以生痈疽矣。盖肾之化精，必得脑中之气以相化，若脑中无非肾火，势必
气化为火，火性炎上，不及下降，即于脑中髓海自发其毒，较之脑气下流为毒者，
其毒更甚。故往往有更变形容，改换声音，疮形紫黑，烦躁口干，随饮随渴，甚至
脑骨俱腐，片片脱下，其野狼狈之状有不可以言语形容者，又将何以救之耶？此症须
问其饮食如何，倘饮食知味，即可用药。方用五圣汤治之。
金银花（半斤） 玄参（三两） 黄 （四两） 麦冬（三两） 人参（二两） 水煎服。
连服四剂，其痈疽渐愈。改用十全大补汤重四两，与之服四剂。又改为八味地黄汤恣其酣饮，
可获全愈矣。
是此等治疗，亦九死一生之法。然舍吾法，实无有第二法矣。人生此疽，得于
房术者俱多。兴阳涩精，都是丹石燥烈之品，或洗或嚼，或噙于口，或藏于脐，霸
阻精道，久战不已，日积月累，真阴枯烁，髓竭火发，遂溃顶门，多致不救。人何
苦博妇女之欢，丧千金之命，长号于夜台也。
有一个人在后颈正中线（对口）部位突然长出小疮，起初发痒随后疼痛，接着溃烂。人们认为这是极其凶险的痈疽，然而，生于后颈正中线的痈疽还算较轻，而生于侧面且难以治愈的则更为严重。因为颈项上方，是肾经和督脉所经过的部位。该部位属阴，所以此处生的痈疽多是阴疽而非阳痈。阳疽必然高突数寸，颜色红肿发光，疼痛剧烈让人呼号；而阴疽则不然，颜色必定黑黯，疼痛也不甚剧烈，身体沉重，困倦想睡觉，呻吟无力，疮口必定不突起，或者出现无数个小疮口，用来迷惑世人，让人不知道从哪里寻找脓头。然而阴阳两种毒邪，都可以从内部消除，怎么可以让皮肤破裂、肿胀溃烂之后才去治疗呢？至于内部消除的方法，本来不需要分辨阴阳，但是既然已经破溃出脓，如果不审辨阴阳而盲目投药，那么灾祸顷刻间就会发生。而内部消除的方法，大约只需三种药材，名为三星汤：金银花（二两）、蒲公英（一两）、生甘草（三钱），用水煎服。服用两剂就能完全消除。如果是阳症已经破溃的，仍然用这个方子治疗，不超过三服必然脓尽肉生。如果是阴症大溃烂的，这个方子不可再用，改用七圣汤：人参（一两）、生黄芪（一两）、当归（一两）、金银花（二两）、白术（一两）、生甘草（三钱）、肉桂（一钱），用水煎服。一剂血止，二剂肉生，三剂疮口变小，四剂皮肤愈合，再服用两剂完全痊愈。此方治疗各处痈毒凡是低陷而不能收口的，无不神效，不只是治疗对口部位的阴毒善于收功罢了。确实是因为阳症可以用凉泻法，而阴症必须用温补法的原因。
世上有人在头顶生痈疽的，这才叫脑疽，而对口、偏口，都不是真正的脑疽。这种疽九死一生，但如果治疗方法得当，都是可以救活的。大概生这种疽的人，都是肾火沸腾所致。因为脑为髓海，原本通于肾，肾没有火则髓不能化为精，肾火多则髓也不能化为精。岂止是不能化精，随着火的升降，还会化为毒而产生痈疽。肾的化精过程，必须得到脑中气的配合才能完成，如果脑中无非肾火，势必气化为火，火性炎上，不及下降，就在脑中的髓海自发其毒，比之脑气下流为毒的情况，毒性更甚。所以往往有改变容貌、声音变化的症状，疮形紫黑，烦躁口干，随饮随渴，甚至脑骨都腐烂，片片脱落，那狼狈不堪的样子有无法用言语形容的，又将用什么来救治呢？此症必须询问其饮食情况，如果饮食知味，就可以用药。方用五圣汤治疗：金银花（半斤）、玄参（三两）、生黄芪（四两）、麦冬（三两）、人参（二两），用水煎服。连续服用四剂，其痈疽逐渐痊愈。改用十全大补汤（重用至四两），给它服用四剂。又改为八味地黄汤让其尽情饮用，可以获得完全痊愈。
这类治疗方法，也是九死一生的方法。然而舍弃我的方法，实在没有第二法了。人生这种疽，大多得自房中术。兴阳涩精的药物，都是丹石燥烈之品，有的清洗，有的咀嚼，有的含在口中，有的藏在肚脐，霸道地阻塞精道，久战不停，日积月累，真阴枯涸烧灼，髓竭火发，于是溃烂头顶门，多导致无法救治。人何必为了博取妇女的欢心，丧失千金之命，在黄泉之下长号痛哭呢？
There is a case where a person suddenly develops small sores on the posterior midline of the neck (Duikou, a specific type of carbuncle). Initially itchy and then painful, it progresses to ulceration. People consider this an extremely dangerous carbuncle; however, carbuncles arising at Duikou are relatively mild, whereas those arising on the sides that are difficult to treat are even more severe. This is because the upper neck is the region governed by the Kidney Meridian and the Du Mai (Governing Vessel). This area belongs to Yin, so the carbuncles and ulcers generated here are mostly Yin-type rather than Yang-type. Yang-type ulcers must protrude several inches, with red and swollen skin that shines, accompanied by severe pain causing groaning; Yin-type ulcers are different: the color is necessarily dark/blackish, the pain is not very severe, the body feels heavy, there is fatigue and a desire to lie down, moaning is weak, the wound does not protrude, or presents as numerous small openings to confuse observers, making it hard to locate the head of the pus. However, both Yin and Yang toxins can be resolved internally; why wait until the skin breaks and swelling ulcerates before treating? As for the method of internal resolution, originally there is no need to distinguish between Yin and Yang. But once the wound has ruptured and pus has emerged, if one blindly administers medicine without assessing Yin and Yang, disaster will occur in an instant. The method of internal resolution generally requires only three herbs, named Sanxing Tang (Three Stars Decoction): *Honeysuckle Flower* (Jinyinhua, 2 liang), *Dandelion Herb* (Gongying, 1 liang), and *Raw Licorice Root* (Sheng Gancao, 3 qian). Decoct in water and take orally. After two doses, complete resolution occurs. For Yang-type conditions that have already ruptured, this formula is still used; within three doses, pus will cease and flesh will regenerate. For Yin-type conditions with extensive ulceration, this formula should not be reused; instead, use Qisheng Tang (Seven Sages Decoction): *Ginseng Root* (Renshen, 1 liang), *Raw Astragalus Root* (Sheng Huangqi, 1 liang), *Angelica Sinensis Root* (Danggui, 1 liang), *Honeysuckle Flower* (Jinyinhua, 2 liang), *Atractylodes Macrocephala Rhizome* (Baizhu, 1 liang), *Raw Licorice Root* (Sheng Gancao, 3 qian), and *Cinnamon Bark* (Rougui, 1 qian). Decoct in water and take orally. Blood stops after one dose, flesh regenerates after two, the wound shrinks after three, and skin closes after four. Two additional doses lead to full recovery. This formula is miraculous for any carbuncle toxin anywhere in the body that is depressed and fails to close, not just for treating Yin-toxin at Duikou. Indeed, Yang conditions can be treated with cooling purgatives, while Yin conditions require warming tonification.
Some people develop carbuncles/ulcers on the top of the head, which is truly called Naoju (Brain Carbuncle); Duikou and Piankou are not true Naoju. This condition carries nine deaths for every one survival, but if treated correctly, all can be saved. Generally, those who develop this carbuncle suffer from boiling Fire of the Kidney. The brain is the Sea of Marrow, originally connected to the Kidney. Without Fire, the Kidney cannot transform Marrow into Essence; with excessive Fire, the Marrow also fails to transform into Essence. Not only does it fail to transform Essence, but following the rise and fall of Fire, it transforms into Toxicity generating carbuncles and ulcers. The transformation of Essence by the Kidney must be assisted by Qi from the Brain. If the Brain contains nothing but Kidney Fire, Qi inevitably transforms into Fire. Since Fire nature flares upward and fails to descend, toxicity spontaneously arises in the Sea of Marrow in the brain. This toxicity is more severe than that caused by Brain Qi flowing downward. Consequently, there are often changes in appearance and voice, purple-black wound shapes, irritability, dry mouth, thirst that persists despite drinking, and even rotting of the cranial bones which peel off in pieces. The wretched state is indescribable; how can it be saved? This condition requires asking about dietary intake. If the patient retains taste for food, medication can be administered. Use Wusheng Tang (Five Sages Decoction) to treat: *Honeysuckle Flower* (Jinyinhua, 8 liang [half jin]), *Scrophularia Root* (Xuanshen, 3 liang), *Raw Astragalus Root* (Sheng Huangqi, 4 liang), *Ophiopogon Tuber* (Maidong, 3 liang), and *Ginseng Root* (Renshen, 2 liang). Decoct in water and take orally. After four consecutive doses, the carbuncle gradually heals. Then switch to Shiquan Dabu Tang (Perfect Great Tonifying Decoction, heavily dosed at 4 liang), taken for four doses. Finally, switch to Bawei Dihuang Tang (Eight-Ingredient Rehmannia Pill/Decoction) allowing liberal consumption, leading to full recovery.
Such treatments are methods for a condition with nine deaths for one survival. However, abandoning my method, there is truly no second way. People contracting this carbuncle often do so due to sexual techniques. Herbs to stimulate yang and astringe essence are typically caustic and hot cinnabar/mineral products. They are washed, chewed, held in the mouth, or hidden in the navel, forcibly blocking the essence pathway. Prolonged intercourse accumulates day after day, drying up True Yin, exhausting Marrow, and igniting Fire, leading to ulceration at the crown of the head, often resulting in death. Why struggle to please women at the cost of a life worth a thousand gold, wailing in the underworld?