〔丹〕发斑属风热。风热挟痰而作，自里而发于外，通圣散中消息，当以微汗散之，下之非理。
（防风通圣散方见颠痫门。）
〔罗〕时毒疙瘩，漏芦散治脏腑积热，发为肿毒，时疫疙瘩，头面洪肿，咽嗌堵塞，水药不下，
一切危恶疫疠。
漏芦 升麻 大黄 黄芩（各一两） 蓝叶 玄参（各二两）
上为粗末，每服二钱，水煎。肿热甚，加芒硝二钱半。
消毒丸治时毒疙瘩恶症。
大黄 牡蛎（烧） 白僵蚕（炒。各一两）
上为细末，炼蜜丸弹子大。新水化下一丸。无时，内加桔梗、鼠粘子汤尤妙。
〔丹〕治丹发疼痛。扁竹汁服一升二合，立瘥。若未瘥，再服效。（《外台秘要》扁竹即 蓄。）
内伤斑者，胃气极虚，一身之火游行于外所致，宜补以降之。尝治一中年男子，痈溃后发热干呕，
背发丹 ，用诸般敷贴丹 药，及用刀于个个丹头出血，丹皆不退，后以半、陈、生姜加补剂治
呕，不效。遂纯用参半两，归、术各钱半，浓煎一帖，呕止。二三帖，丹渐缓，热渐减。约五十
余帖，热始除，神气始复。
运气丹 皆属火。经云∶少阳司天，客胜则丹疹外发，及为丹 是也。
〔无〕治诸肿丹毒。伏龙肝不拘多少为末，用鸡子白和敷之，日三次，甚妙。
〔涓〕治一切丹毒，金花散。
郁金 黄芩 甘草 山栀 大黄 黄连 糯米
上七味等分，生为末，用蜜和水调服。
〔《本》〕治烟火丹。发从背起，或两胁及两足赤如火。景天草、真珠末一两，捣和如泥，涂
之。
又方 治萤火丹从头起。慎火草捣，和苦酒涂之。
〔丹〕丹毒。蓝淀敷热即易。（《子母秘录》）
〔《肘》〕丹者，恶毒之疮，五色无常。苎根三斤，水三斗煮汁，每日涂之。
〔世〕治赤丹。用黄瓜种中穣水，去子，以器贮之。用时以水涂患处。
又方 用腊雪贮器中，久化为水，以水涂赤游，妙。
〔丹〕诸丹毒肿。蚯蚓矢，水和敷之。（《圣惠方》，《外台》同。）
〔《千》〕疗丹瘾疹方。酪和盐煮，以摩之手，下消。
〔丹〕治赤游风肿。荞麦苦酒调敷。（《兵部手集》）
〔杨〕治热赤游丹毒。栝蒌末二大两，酽醋调涂之。
〔《外》〕凡丹走皮中浸淫，名火丹。本方取蛴螬敷之。（先刺破，敷之良。）
〔《肘》〕丹者，恶毒之疮，五色无常。治之，煮栗皮有刺者，洗之佳。
〔《保》〕治金丝疮，一云红丝疮。其状如线，或如绳，巨细不一，《经》谓丹毒是也。但
比烟毒不甚广阔，人患此，头上有之，下行至心则死；下有之，上行者亦然。可于疮头截经刺之
出血，后嚼萍草根涂之，自安。
〔无〕丹毒自腹内生出四肢者，则易愈；自四肢入腹者，则难治。
〔丹〕人有病面上忽见红点者，多死。
[Danxi] Macules (fā bān) belong to wind-heat. Wind-heat, carrying phlegm, causes the disease, originating from the interior and manifesting on the exterior. One should refer to the principles of Fangfeng Tongsheng San (Windproof Unimpeding Powder), dispersing the pathogen through slight sweating; using purgation is not in accordance with medical principles.
(The formula for Fangfeng Tongsheng San is found in the Epilepsy section.)
[Luo Tianyi] For epidemic toxic nodules (shí dú gē da), Lulu San (Rhaponticum Powder) treats swelling and toxicity caused by accumulated heat in the zang-fu organs. Epidemic nodules present with severe swelling of the head and face, blockage of the throat making it difficult to swallow water or medicine, and all kinds of critical epidemic pestilences.
Lulu (Radix Euphorbiae Humifusae), Shengma (Rhizoma Cimicifugae), Dahuang (Radix et Rhizoma Rhei), Huangqin (Radix Scutellariae) (each 1 liang), Lanye (Folium Isatidis), Xuanshen (Radix Scrophulariae) (each 2 liang).
Grind the above into coarse powder. Take 2 qian per dose, decoct in water. If swelling and heat are severe, add Mangxiao (Natrii Sulfas) 2.5 qian.
Xiaodu Wan (Disinfecting Pill) treats malignant symptoms of epidemic toxic nodules.
Dahuang (Radix et Rhizoma Rhei), Muli (Concha Ostreae) (calcined), Baijiangcan (Bombyx Batryticatus) (stir-fried, each 1 liang).
Grind the above into fine powder, make pills with refined honey the size of a bullet. Dissolve one pill in fresh water and take orally. Time is not restricted; adding Jiegeng (Radix Platycodonis) and Niuzibei (Fructus Arctii) decoction for administration is particularly excellent.
[Danxi] To treat pain caused by erysipelas (dān). Drink 1 sheng 2 he of Bianzhu juice (juice of Polygonum aviculare), and recovery will be immediate. If not cured, taking it again is effective. (In *Waitai Miyao*, Bianzhu refers to Pianxia / Polygonum aviculare.)
Internal injury macules are caused by extreme deficiency of stomach qi, leading to fire roaming on the exterior. The treatment should involve tonification to guide the fire downward. I once treated a middle-aged man who, after the ulceration of an abscess, suffered from fever and dry retching. Erysipelas appeared on his back. Various topical applications for erysipelas were used, and a knife was used to prick and bleed from each nodule, but the erysipelas did not recede. Later, Banxia (Rhizoma Pinelliae), Chenpi (Pericarpium Citri Reticulatae), and Shengjiang (Rhizoma Zingiberis Recens) were added to a tonic formula to treat the vomiting, but without effect. Subsequently, only Renshen (Radix Ginseng) 0.5 liang, Danggui (Radix Angelicae Sinensis), and Baizhu (Rhizoma Atractylodis Macrocephalae) 1.5 qian each were used, decocted thickly for one dose, which stopped the vomiting. After two or three doses, the erysipelas gradually eased, and the heat gradually decreased. After about fifty-plus doses, the heat was finally eliminated, and the spirit and qi recovered.
Yunqi Dan (Destiny Qi Erysipelas) all belongs to fire. The classics state: When Shaoyang governs the year, if the external pathogen prevails, macules and rashes erupt externally, forming erysipelas.
[Wuyi] To treat various swellings, erysipelas, and toxins. Fulonggan (Calculated Hearth Earth) in any amount, ground into powder, mixed with egg white and applied topically. Three times a day, very effective.
[Juan] To treat all types of erysipelas, use Jinhua San (Golden Flower Powder).
Yujin (Radix Curcumae), Huangqin (Radix Scutellariae), Gancao (Radix Glycyrrhizae), Shanzhi (Fructus Gardeniae), Dahuang (Radix et Rhizoma Rhei), Huanglian (Rhizoma Coptidis), Nuomi (Oryza Sativa Glutinosa).
The above seven ingredients in equal parts, ground raw into powder, taken orally with honey and water mixed.
*[Bencao]* To treat Yanhuo Dan (Smoke Fire Erysipelas). The eruption starts from the back, or the two flanks and both feet become red like fire. Use Jingtian Cao (Herba Sedis Acre) and Zhenzhu Mo (Margarita) 1 liang, pounded into a paste, and applied.
Another prescription: To treat Yinghuo Dan (Firefly Erysipelas) starting from the head. Pounded Shenhcao (Herba Patriniae) mixed with vinegar for application.
[Danxi] Erysipelas. Apply Landian (Indigo Naturalis); replace when the heat subsides. (*Zimu Milu*)
*[Zhouhou]* Dan is a malignant toxic sore, with colors varying among the five hues. Use Zhugen (Radix Boehmeriae Niveae) 3 jin, boiled in 3 dou of water to extract the juice, apply daily to the affected area.
[Shichuan] To treat Chi Dan (Red Erysipelas). Use the watery pulp from the center of cucumber seeds, remove the seeds, store in a vessel. When needed, use the water to smear the affected area.
Another method: Store snow from the twelfth lunar month in a vessel until it melts into water. Use this water to smear Chi You Dan (Red Roaming Erysipelas), miraculous.
[Danxi] Various erysipelas swellings. Use earthworm feces (Qiuyin Shi), mixed with water and applied topically. (*Shenghui Fang*, same as *Waitai*).
*[Qianjin]* Prescription for treating Dan Yin Zhen (Erysipelas Urticaria). Boil dairy products with salt, rub onto the hands, the evil qi will dissipate downwards.
[Danxi] To treat Chi You Feng Zhong (Red Roaming Wind Swelling). Mix Qiaomai (Fagopyrum esculentum) with vinegar and apply topically. (*Bingbu Shouji*)
[Yang] To treat Re Chi You Dan Du (Heat-induced Red Roaming Erysipelas Toxin). Use Gualou Mo (Fructus Trichosanthis powder) 2 large liang, mixed with strong vinegar for topical application.
*[Waitai]* Whenever erysipelas wanders within the skin and spreads, it is called Huo Dan (Fire Erysipelas). This prescription uses Qicao (larva of Tenebrio molitor) for application. (Prick the skin first, then apply for best results.)
*[Zhouhou]* Dan is a malignant toxic sore, with colors varying among the five hues. To treat it, boil the peel of chestnuts with thorns, and wash the affected area with it; this is good.
*[Baoming]* To treat Jin Si Chuang (Golden Thread Sore), also known as Hong Si Chuang (Red Thread Sore). Its shape resembles a thread or rope, varying in thickness. The *Classic* calls this Dan Du (Erysipelas Toxin). It is less extensive than Yan Du (Smoke Toxicity). If a person suffers from this, and it appears on the head and descends to the heart, death ensues; if it appears below and ascends, the result is the same. One can prick the head of the sore to cut off the meridian and release blood, then chew Pingguo Cao (Root of Wolffia globosa) and apply it, and peace will return.
[Wuyi] Erysipelas that originates internally in the abdomen and emerges in the four limbs is easy to cure; that which enters the abdomen from the four limbs is difficult to treat.
[Danxi] If a person suddenly sees red spots on the face, death is likely.