肘后夫丹者，恶毒之气，五色无常，不即疗之，痛不可堪，又待坏则去脓血数升，或发
于节解，多断人四肢，盖疽之类疗之方。
煮栗 有刺者洗之。（姚同）
又疗发足踝方。
捣蒜如泥，以浓涂，干即易之。（集验文仲备急同出第二卷中）
短剧说丹毒一名天火也，肉中忽有赤如丹涂之色，大者如手掌，其剧者竟身体亦有痛痒
微肿方。
赤小豆（一升）
上一味末下筛，以鸡子白和如泥，涂之，干复涂之，逐手消也，竟身者倍合之，尽复作
（删繁千金同）
又疗丹，诸单行方或行得一物瘥。
水苔 生蛇衔 生地黄 生菘叶 蒴 叶 五叶藤 慎火草 浮萍草 豆豉 大黄 栀
子黄芩 芒硝
上十三味，但得一物捣以贴之，即瘥，赤小豆末和鸡子白涂，无鸡子水和用之。（千金
同）
又方
新附淋草（半斤） 蛇蜕皮（一条） 露蜂房（三两）
上二味，以水一斗，煮取四升，以帛拓洗之，随手消神妙，经用效，故附此卷传之。
又方
煮粟取浓汁，以洗之妙。
又方
取蛐 粪，水和如泥，涂之。
千金论曰，丹毒一名天火，肉中忽有赤如丹涂，大者如手掌，甚者竟身痒微肿，又白丹
肉中起痒痛，微虚肿如吹瘾疹起，亦有鸡冠丹赤起，大者如钱，小者如麻豆粒，如鸡冠上涩
，一名茱萸火丹，有水丹，由体热过水湿搏之结丹，晃晃黄赤色，如有水在中，喜着腹及阴
处
，此虽小疾，不治令人至死，疗之皆用升麻膏方。
升麻 白薇 漏芦 连翘 芒硝（各二两） 黄芩 蛇衔 枳实（炙各三两） 栀子（二
十
枚） 蒴 （四两）
上十味捣碎令细，以水三升渍半日，猪脂五升煎之，候水气竭，去滓，干器中收之，量
取敷
仲备
又疗丹神验方。
芸薹茱萸捣令熟，浓封之，随手即消散，余热未愈，再封，臣以贞观七年三月八日于内
江县饮多，至夜睡中，觉四体骨肉并疼，比至晓头痛目眩，额左角如弹子大肿，痛不可得近，
至午
瘥，
The *Zhouhou Beiji Fang* (Emergency Prescriptions Kept in the Sleeve) records "Fu Dan" (夫丹), which refers to malignant toxic qi. Its color varies unpredictably among the five colors. If not treated immediately, the pain becomes unbearable; if delayed until the skin ulcerates, several sheng (a unit of volume) of pus and blood will flow out. This condition sometimes occurs at the joints and often leads to the necrosis of the four limbs; it belongs to the category of carbuncles (ju).
Boiled Chestnut: Use the spiny husks after washing them. (Yao Sengyuan holds the same view.)
Another prescription for treating Dan toxin on the ankle.
Crush garlic into a paste, apply it thickly to the affected area, and replace it when it dries. (From *Jiyan Fang*, *Wenzhong Beiji Fang*, both appearing in Volume 2.)
The *Duanju Fang* states that Dan toxin is also called "Tianhuo" (Heavenly Fire). Suddenly, the flesh exhibits a red color like cinnabar paint. The lesions can be as large as a palm, and in severe cases, they may cover the entire body, accompanied by slight swelling and pain/itching.
Red Adzuki Bean (1 sheng)
Grind the above single herb into powder and sift it. Mix with egg white to form a paste, apply to the affected area, and reapply when dry. It will gradually subside with hand movements. If covering the whole body, double the dosage. Continue until recovery. (Same as *Shanfan Fang* and *Qianjin Fang*.)
Another treatment for Dan toxin: Various single-herb prescriptions or monotherapy methods sometimes cure the disease using just one herb.
Hydrocharis mosses (Shuitai), Fresh Ophiopogon japonicus (Sheng Sheyan), Fresh Rehmannia glutinosa (Sheng Dihuang), Fresh Brassica chinensis leaves (Sheng Songye), Leaves of Datura metel (Shuo Bi Ye), Five-leaf Vine (Wuye Teng), Plantago asiatica (Shenhuo Cao), Duckweed (Fuping Cao), Fermented Soybean (Douchi), Rhubarb (Dahuang), Gardenia (Zhizi), Scutellaria baicalensis (Huangqin), Mirabilite (Mangxiao).
Of the above thirteen herbs, simply take any one, crush it, and apply it topically; the disease will heal. Alternatively, mix Red Adzuki Bean powder with egg white for application; if egg white is unavailable, water may be used. (Same as *Qianjin Fang*.)
Another prescription
Newly added Polygonum aviculare (Xinfu Lincao) (0.5 jin), Snake Slough (Yitiao), Honeycomb of Vespa (Lufengfang) (3 liang).
Take the above three ingredients (Note: Text says "two", but lists three), boil in ten dou of water until reduced to four sheng. Apply to the affected area using a cloth pad for washing/compressing. It dissipates instantly upon contact, showing miraculous efficacy. Having been effective over long-term use, it is attached here for transmission.
Another prescription
Boil millet to obtain a thick decoction, and use it to wash the affected area; this is excellent.
Another prescription
Collect feces from centipedes (Quyin), mix with water to form a paste, and apply to the affected area.
The *Qianjin Fang* discusses: Dan toxin is also called "Tianhuo." Suddenly, the flesh shows a red color like cinnabar paint. Large lesions are palm-sized, while severe ones cover the whole body, causing itching and slight swelling. There is also "White Dan," which presents as itchy and painful swelling in the flesh, resembling urticaria (wind rash). There is also "Chicken Comb Dan," which appears as red elevations, large as coins or small as hemp seeds, rough like a chicken comb, also known as Cornelian Cherry Fire Dan. There is also "Water Dan," caused by internal heat combining with dampness to form Dan toxin, presenting as shimmering yellow-red color, seemingly containing fluid, and preferring to occur on the abdomen and genital areas. Although this is a minor ailment, failure to treat it can lead to death. Treatment generally employs Shengma Gao (Cimicifuga Ointment).
Cimicifuga herba (Shengma), Anemarrhenae Rhizoma (Baiwei), Euphorbiae Pekinensis Radix (Loulu), Forsythiae Fructus (Lianqiao), Natrii Sulfas (Mangxiao) (each 2 liang), Scutellaria baicalensis (Huangqin), Ophiopogon japonicus (Sheyan), Aurantii Fructus Immaturus (Zhishi) (roasted, each 3 liang), Gardeniae Fructus (Zhizi) (20 pieces), Datura metel leaves (Shuo Bi) (4 liang).
Crush the above ten herbs finely. Soak in three sheng of water for half a day. Add five sheng of lard and decoct. Wait until the water evaporates completely, remove the dregs, and store in a dry container. Apply an appropriate amount externally. (Text fragment "Zhongbei" remains here as in original).
Another miraculous prescription for treating Dan toxin.
Crush Rapeseed greens (Yuntai) and Cornelian cherry fruits (Zhuyu) thoroughly, apply thickly to the affected area. It dissipates instantly. If residual heat persists, reapply. I, your subject, drank excessively in Neijiang County on March 8th of the 7th year of Zhenguan. During the night sleep, I felt pain in all four limbs' bones and muscles. By dawn, I suffered from headache and dizziness. A swelling the size of a marble appeared on the left corner of my forehead, so painful that it could not be touched. By noon, it had healed.