王肯堂曰∶耳发疽生耳叶，属手少阳三焦经，风热所致。六七日渐肿如桃，或
如蜂房之状，或赤或紫，热如火痛彻心是也。十日刺出黄白脓者生；刺之无脓，时
出鲜血，饮食不下，神昏狂躁者死。（《准绳》）
申斗垣曰∶耳发疽，乃足少阳胆经，其经多气少血，其疽发于鬓下耳旁近脸，悬
厘、主客二穴上，不五六日渐长蜂窝，皮紫焰热如火灼痛。十日内剌之，有脓者生，
无脓出血，精神恍惚，二十四朝必死，不可救也。（《启玄》）
《心法》曰∶耳发疽，生耳折间，连耳叶通肿，甚则脓窜耳窍。
《心法》曰∶耳后疽，生耳上稍之后，（角孙穴）开口有空陷下之处者是。
王肯堂曰∶耳疔，寒热大作，痛楚难
禁者是也。（《准绳》）
窦汉卿曰∶耳疔，以烧酒滴疔根上，方得脱。随用苦茶洗，解去酒毒。
陈实功曰∶黑疔生于耳窍之内，黑硬腐烂，破流血水，疼连腮颧，宜针刺之。照
疔疮门治法（《正宗》）
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王肯堂曰∶耳疳生疮臭秽，乃足少阴手少阳二经风热上壅而成。（《准绳》）
冯鲁瞻曰∶耳内疳臭谓之冱耳。乃肾气有余，积热上冲，或因风水起。（《锦囊》）
李东垣曰∶小儿耳后生疮，名肾疳。
Wang Kentang stated: Ear carbuncle (Er Fa Ju) arises on the auricle and belongs to the Hand Shaoyang Sanjiao Meridian, caused by wind-heat pathogenic factors. Within six or seven days, it gradually swells to the size of a peach or assumes a honeycomb-like appearance; the color may be red or purple, accompanied by intense heat like fire and pain so severe it reaches the heart. If yellowish-white pus is discharged upon puncture after ten days, the prognosis is good; however, if no pus is found upon puncture but fresh blood flows intermittently, accompanied by inability to eat or drink, coma, and mania, the prognosis is fatal. (From *Yixue Zhunsheng*)
Shen Douyuan stated: Ear carbuncle (Er Fa Ju) involves the Foot Shaoyang Gallbladder Meridian, which is characterized by abundant Qi and scarce Blood. This carbuncle erupts below the temples, beside the ear near the face, above the Xuanli (GB21) and Zhuoke acupoints. Within five or six days, it rapidly develops into a honeycomb shape with purple skin, burning heat like fire, and scorching pain. If punctured within ten days and pus is present, survival is possible; if there is no pus but bleeding occurs, along with mental confusion and fluctuation, death will inevitably occur within twenty-four days, and it is incurable. (From *Qixuan*)
*Waike Xinfa Yaojue* states: Ear carbuncle (Er Fa Ju) arises between the folds of the helix, causing swelling that extends through the entire auricle. In severe cases, pus may penetrate into the auditory canal.
*Waike Xinfa Yaojue* further states: Postauricular carbuncle (Er Hou Ju) arises slightly behind the upper part of the auricle (at the Jiaosun TE17 acupoint). Its characteristic feature is a depression in this area when the mouth is opened.
Wang Kentang stated: Ear furuncle (Er Ding) presents with alternating chills and high fever, and pain so severe it is unbearable. (From *Yixue Zhunsheng*)
Dou Hanqing stated: To treat ear furuncle (Er Ding), apply boiling wine to the root of the lesion until it subsides. Subsequently, wash the area with bitter tea to detoxify the effects of the wine.
Chen Shigong stated: Black furuncle (Hei Ding) arises inside the auditory canal, appearing black, hard, and necrotic. Upon rupture, it bleeds and discharges fluid, with pain radiating to the cheeks and zygomatic region. It is suitable for needle puncture. Treat according to the methods outlined in the Furuncle chapter. (From *Waike Zhengzong*)
[Image: Er Ding]
[Image: Er Gan]
Wang Kentang stated: Ear eczema/ulcer (Er Gan) involves foul-smelling ulcers, resulting from wind-heat accumulation obstructing the Foot Shaoyin Kidney Meridian and Hand Shaoyang Sanjiao Meridian. (From *Yixue Zhunsheng*)
Feng Luzhan stated: Foul-smelling discharge from ear eczema is called "Hu Er" (Frozen Ear). It is caused by excess Kidney Qi leading to accumulated heat rushing upward, or due to wind-water pathogenic factors. (From *Waike Jinang*)
Li Dongyuan stated: Ulcers arising behind the ears in children are named Kidney eczema (Shen Gan).