碗头疮者，亦有汗下后余毒不尽，故瘥后而发碗头疮也。只以黄连、甘草、归尾、
红花、防风、苦参、荆芥、连翘、羌活、白芷之类煎服，外用芒硝、赤小豆、青黛为
末，以鸡子清和猪胆汁调敷疮上最效，勿动其靥，待其自脱。若瘥后小便涩有血者，亦
是余毒热也，名曰内外疮，亦皆有靥。若不出脓者死。宜用黄连解毒汤加生地、归尾、
连翘、木通、滑石、牛膝、 蓄、琥珀、甘草稍之类。
凡阳明反无汗，皮中如虫行者，胃主肌肉，阳明久虚也，宜术附汤、黄 建中汤主
之。如风热盛，身痒发热无汗，口燥舌干，大小便秘涩者，宜防风通圣散加羌活主之。
如风证身痒者，宜小续命去附子，加白附子主之。如血虚身痒者，宜四物汤加浮萍、蒺
藜、防风主之。
发于鼻额红肿，以至两目盛肿而不开，额上面部皆赤而肿者，属阳明也，或壮热气
喘，口干舌燥，咽喉肿痛不利，脉来数大者，用普济消毒饮主之。如内实热盛者，用
通圣消毒饮。若发于耳之上下前后，并头角红肿，此属少阳也。或肌热，日脯热，寒热
往来，口苦咽干，目疼胁下满，宜小柴胡加花粉、羌活、荆芥、连翘、芩连主之。若发
于头上，并脑后项下及目后赤肿者，此属太
阳也、宜荆芥败毒散主之。若三阳俱受邪，并于头面耳目鼻者，以普济消毒散，外用清
凉救苦散敷之，治法当先缓后急，则邪伏也。先缓者，宜退热消毒，虚人兼扶元气，
胃虚食少者，宜助胃气，候其大便内结热甚，方以大黄下之，拔其毒根，此先缓后急
之法也。盖此毒先肿于鼻额，次肿于目，又次肿于耳，从耳至头，上络后脑，结块则
止，若不散必成脓也。俗云大头天行，亲戚不相访问，染者多不救。泰和间多有病此
者，医以承气加蓝根下之，稍缓，翼日如故，下之又缓，终莫能愈，渐到危笃。东垣
视之曰∶夫身半以上，天之气也。身半以下，地之气也。此邪热客于心肺之间，上攻
头而为肿盛，以承气泻胃中之实热，是为诛伐无过，遂处普济消毒饮子全活甚众。
碗头疮，也有因发汗或攻下后余毒未尽，所以在病愈后发作碗头疮的情况。只需使用黄连、甘草、当归尾、红花、防风、苦参、荆芥、连翘、羌活、白芷等药材煎服；外用芒硝、赤小豆、青黛研成粉末，用鸡蛋清和猪胆汁调和敷在疮上最为有效，不要触动疮痂，等待其自行脱落。如果在病愈后小便涩痛且带血，这也是余毒热邪所致，名叫内外疮，也都有疮痂。如果不出脓就会死亡。适宜使用黄连解毒汤加生地黄、当归尾、连翘、木通、滑石、牛膝、蓄草、琥珀、甘草梢等药材。
凡是阳明经反而无汗，皮肤中像有虫爬行的感觉，是因为胃主肌肉，阳明经长期虚弱所致，适宜用术附汤、黄芪建中汤主治。如果是风热炽盛，身体瘙痒发热无汗，口燥舌干，大小便便秘涩滞的，适宜用防风通圣散加羌活主治。如果是风证导致身体瘙痒的，适宜用小续命汤去掉附子，加白附子主治。如果是血虚导致身体瘙痒的，适宜用四物汤加浮萍、蒺藜、防风主治。
肿胀发生在鼻部和额头红肿，以至于双眼严重肿胀无法睁开，额头及面部都发红肿胀的，属于阳明经病变。或者伴有高热气喘，口干舌燥，咽喉肿痛不利，脉搏快而大的，用普济消毒饮主治。如果体内实热炽盛的，用通圣消毒饮。如果肿胀发生在耳朵的上下前后，以及头角红肿，这属于少阳经病变。或者伴有肌肉发热，下午发热，寒热往来，口苦咽干，眼睛疼痛胁下胀满，适宜用小柴胡汤加天花粉、羌活、荆芥、连翘、黄芩黄连主治。如果肿胀发生在头上，以及脑后项下和眼后红肿的，这属于太阳经病变，适宜用荆芥败毒散主治。如果三阳经同时受邪，并集中在头面耳目鼻部位，用普济消毒散，外用清凉救苦散敷贴，治疗方法应当先缓后急，这样邪气才能潜伏消退。先缓的方法，适宜退热解毒，体虚的人兼以扶助元气，胃虚食量少的，适宜助胃气，等到其大便内结热势很盛时，才用大黄泻下，拔除毒根，这是先缓后急的方法。这种毒邪先在鼻额肿胀，其次在眼睛肿胀，再次在耳朵肿胀，从耳朵到头部，向上联络后脑，结成块状就停止，如果不消散必然化脓。俗话称大头天行（大头瘟），亲戚不相往来探视，感染的人大多无法救治。泰和年间多有患此病的人，医生用承气汤加板蓝根泻下，症状稍缓解，第二天又恢复原状，再泻下又稍缓解，最终不能痊愈，逐渐发展到危重地步。李东垣诊治说：身体上半部，是天之气所主。身体下半部，是地之气所主。这种邪热客居在心肺之间，向上攻冲头部导致肿胀盛大，如果用承气汤泻胃中的实热，这是诛伐没有过错的部位，于是处方普济消毒饮子，保全了很多人。
Wan Tou Chuang (Bowl-Head Sore) may also occur due to residual toxins not being fully cleared after sweating or purging therapies, thus manifesting as Wan Tou Chuang after recovery. It can be treated by decocting and administering herbs such as Huanglian (Coptidis Rhizoma), Gancao (Glycyrrhizae Radix et Rhizoma), Guiwei (Angelicae Sinensis Radix), Honghua (Carthami Flos), Fangfeng (Saposhnikoviae Radix), Kushen (Sophorae Flavescentis Radix), Jingjie (Schizonepetae Spica), Lianqiao (Forsythiae Fructus), Qianghuo (Notopterygii Rhizoma et Radix), and Baizhi (Angelicae Dahuricae Radix). Externally, Mangxiao (Natrii Sulfas), Chixiaodou (Adzuki Bean), and Qingdai (Indigo Naturalis) are ground into powder, mixed with egg white (Jizi Qing) and pig bile (Zhudan Zhi), and applied to the sore for best effect. Do not disturb the scabs; wait for them to fall off naturally. If urinary difficulty with blood occurs after recovery, this is also due to residual toxic heat, known as Neiwai Chuang (Internal and External Sores), which also presents with scabs. If pus does not discharge, death ensues. One should use Huanglian Jiedu Tang (Coptis Decoction for Resolving Toxins) supplemented with Shengdi (Rehmanniae Radix), Guiwei (Angelicae Sinensis Radix), Lianqiao (Forsythiae Fructus), Mutong (Akebiae Caulis), Huashi (Talcum), Niuxi (Achyranthis Bidentatae Radix), Xianhecao (Herba Siegesbeckiae), Hupo (Amber), and Gancao Shao (tip of Glycyrrhizae Radix et Rhizoma).
In cases where the Yangming channel paradoxically lacks sweat, and the skin feels like insects crawling, it is because the Stomach governs muscles, indicating chronic deficiency of the Yangming channel. Shuzhu Fuzi Tang (Atractylodis Macrocephalae and Aconite Decoction) or Huangqi Jianzhong Tang (Astragalus Decoction for Building the Middle) should be used. If wind-heat is excessive, causing body itching, fever, absence of sweat, dry mouth and tongue, and constipation with difficult urination and defecation, Fangfeng Tongsheng San (Windproof Powder for Unblocking the Intestines) added with Qianghuo (Notopterygii Rhizoma et Radix) is appropriate. For body itching caused by wind patterns, Xiaoxuming Tang (Minor Continuation of Life Decoction) without Fuzi (Aconiti Lateralis Radix Praeparata) but added with Baifuzi (Acori Tatarinowii Rhizoma) should be used. For body itching due to blood deficiency, Siwu Tang (Four Substances Decoction) added with Fuping (Ulmus Micocarpus Cortex), Jili (Tribuli Fructus), and Fangfeng (Saposhnikoviae Radix) is suitable.
Swelling occurring on the nose and forehead, red and swollen, extending to severe swelling of both eyes preventing them from opening, with the entire forehead and face red and swollen, belongs to the Yangming channel. If accompanied by high fever, panting, dry mouth and tongue, painful and obstructed throat, and a rapid, large pulse, Puji Xiaodu Yin (Universal Benefit Decoction for Resolving Toxins) should be used. If internal excess heat is severe, Tongsheng Xiaodu Yin (Unblocking Benefit Decoction for Resolving Toxins) is indicated. If swelling occurs around the ears (above, below, front, back) and the temporal regions, red and swollen, this belongs to the Shaoyang channel. If accompanied by muscle fever, afternoon fever, alternating chills and fever, bitter taste in the mouth, dry throat, eye pain, and fullness under the ribs, Xiao Chaihu Tang (Minor Bupleurum Decoction) added with Huafen (Trichosanthis Radix), Qianghuo (Notopterygii Rhizoma et Radix), Jingjie (Schizonepetae Spica), Lianqiao (Forsythiae Fructus), Huangqin (Scutellariae Radix), and Huanglian (Coptidis Rhizoma) is appropriate. If swelling occurs on the head, including the back of the head, nape, and behind the eyes, red and swollen, this belongs to the Taiyang channel, and Jingjie Baidu San (Schizonepeta Antidote Powder) should be used. If all three yang channels are affected simultaneously, concentrating on the head, face, ears, eyes, and nose, Puji Xiaodu San (Universal Benefit Powder for Resolving Toxins) should be used, with Qingliang Jiuku San (Cooling and Saving from Suffering Powder) applied externally. The treatment method should proceed from mild to urgent measures so that pathogens become latent. The mild approach involves reducing fever and resolving toxins; for deficient individuals, supporting Yuan Qi (Primal Qi) is necessary. For those with weak stomach qi and poor appetite, strengthening stomach qi is required. Only when fecal impaction with severe internal heat occurs should Dahuang (Rhei Radix et Rhizoma) be used to purge and extract the root of the toxin. This is the method of proceeding from mild to urgent. Generally, this toxin first swells on the nose and forehead, then on the eyes, then on the ears, spreading from the ears to the head and connecting to the back of the brain. Swelling stops when it forms a mass; if it does not dissipate, it will suppurate. Folk wisdom calls this "Da Tou Tian Xing" (Great Head Epidemic), advising relatives not to visit, as infected persons often do not survive. During the Taihe era, many suffered from this disease. Physicians used Chengqi Tang (Chengqi Decoction) added with Lan Gen (Isatidis Radix) to purge, resulting in slight relief, but symptoms returned the next day. Repeated purging provided only temporary relief, and the condition eventually became critical. Li Dongyuan examined the patient and stated: The upper half of the body is governed by Heaven Qi, and the lower half by Earth Qi. This pathogenic heat lodges between the Heart and Lung, attacking upward to cause severe head swelling. Using Chengqi Tang to purge excess heat from the Stomach would be punishing the innocent. Therefore, he prescribed Puji Xiaodu Yin Zi (Universal Benefit Decoction for Resolving Toxins), saving many lives.