《圣惠》夫小儿五色丹者，由丹发而改变无常，或青黄白黑赤，此是风毒之热有
盛有衰，或冷或热，故发为五色丹也。
《孔氏家传》用小柴胡汤如法煎服，以滓敷丹上，良。川大黄、川芒硝、栀子仁、黄
芩、干蓝叶、商陆各等分，为细末，水调涂。枣树根四两、丹参三两、菊花
一两半、锉细，每二两，水五升，煮三升。避风，适寒温浴儿。苎根叶一斤细
锉，赤小豆三合，以水五升，煮三升，去滓。避风处温浴儿。青栗球有刺者柞
碎，水煮，浴儿。蒲席灰、鸡白和涂。牛屎敷之，干即易。猪槽下烂泥敷之，
干即易。缚母猪头骨，卧枕之。
夫白丹者，由挟风冷之气、故使色白也，初发痒痛，微虚肿如吹奶起，不痛不
赤，而白色也。
酸母草、五叶草各五两，绞汁涂。川大黄杵为末，以马齿苋自然汁调涂。
烂杵蓼叶涂。烂杵兰香叶涂。醋、和梁上尘涂。猪脂和鹿角灰涂。烧猪粪
灰，鸡子白和涂。
张涣香豉散 治白丹疰痛，虚肿如吹方
香豉（二两，炒焦） 伏龙肝（一两）
上为末。生油调，涂之。
《圣惠》又云∶夫白胗者，由风气折于肌中，与风相搏，遂为胗也，得天阴而冷则剧，
出风中亦剧，得睛暖则灭，身暖亦瘥，宜用此方。
枳实（锉）
上用水煮，取汁，洗拭丹上。
治小儿风热毒肿白色，或有恶核瘰 ，附骨痈疽，节解不举，白丹走满身中，白胗
搔不已。五香连翘汤
青木香 薰陆香 鸡舌香 沉香 麻黄 黄芩（各一分） 大黄（八分） 麝香（半分） 连
翘海藻 射干 升麻 枳实（各二分） 竹沥汁（三合）
上，水四升，煮药至一半，内竹沥，煮取一升二合。儿生百日至二百日，一服
二合。二百余日至 ，一服五合。
《外台备急》治白丹。
苎根（三斤） 小豆（四升）
上，以水二斗煮，日浴三四次。（兼治一切丹，妙。）
《圣惠方》论述：所谓小儿五色丹，是因为丹毒发作后颜色变化无常，有时呈现青、黄、白、黑、赤五种颜色。这是由于风毒之热邪有盛有衰，或偏冷或偏热，因此发为五色丹。
《孔氏家传》记载：使用小柴胡汤（Xiao Chai Hu Tang, Minor Bupleurum Decoction）按照常规方法煎煮服用，并将药渣敷在丹毒患处，效果良好。配方包括：川大黄（Rhei Radix et Rhizoma）、川芒硝（Natrii Sulfas）、栀子仁（Gardeniae Fructus）、黄芩（Scutellariae Radix）、干蓝叶（Isatidis Folium Dry）、商陆（Phytolaccae Radix），各等分，研成细末，用水调匀后涂抹。另法：取枣树根四两、丹参（Salviae Miltiorrhizae Radix）三两、菊花（Chrysanthemi Flos）一两半，切碎，每次取二两，加水五升，煮至三升。注意避风，调节水温适宜给婴儿洗浴。再法：取苎麻根叶一斤切碎，赤小豆（Adzuki Bean）三合，加水五升，煮至三升，去渣。在避风处用温药液给婴儿洗浴。再法：选取带刺的青栗球（Castanea mollissima fruit with spines），捣碎，用水煮，给婴儿洗浴。再法：用蒲席灰与鸡蛋清调和涂抹。再法：用牛粪敷贴患处，干了就更换。再法：用猪槽底下的烂泥敷贴患处，干了就更换。再法：将母猪的头骨绑缚起来，让患儿枕卧其上。
关于白丹：是由于夹杂了风冷之气，所以使皮肤呈现白色。初起时瘙痒疼痛，轻微虚肿如同吹起的奶泡一样，不痛也不红，仅呈白色。
治疗方法：取酸母草、五叶草各五两，绞取汁液涂抹。或者取川大黄研为末，用马齿苋（Portulacae Herba）自然汁调匀涂抹。或者将蓼叶（Polygoni Herba）捣烂涂抹。或者将兰香叶（Perillae Folium）捣烂涂抹。或者用醋调和屋梁上的灰尘涂抹。或者用猪脂调和鹿角灰涂抹。或者烧猪粪成灰，用鸡蛋清调和涂抹。
张涣的香豉散：治疗白丹引起的疰痛（Zhutong, a type of lingering pain or infection），虚肿如吹起奶泡的方剂。
组成：香豉（Soybean Preparatum，二两，炒焦）、伏龙肝（Fulguris Argillae）。
制法：研为细末。用生油调匀，涂抹患处。
《圣惠方》又说：所谓白疹（Bai Zhen, white rash），是由于风气郁折于肌肤之中，与风邪相搏结，从而形成疹子。遇到阴天寒冷则病情加重，处于风口也加重，遇到晴天温暖则消退，身体暖和也会好转，适宜使用此方。
组成：枳实（Aurantii Fructus Immaturus，切碎）。
用法：用水煎煮，取汁液，清洗擦拭丹毒患处。
治疗小儿风热毒肿呈白色，或有恶核瘰疬（E He Luo Li, malignant nodules and scrofula），附骨痈疽（Fu Gu Yong Ju, deep-seated abscesses），关节活动不利，白丹蔓延满身中，白疹搔抓不止。方用五香连翘汤（Wu Xiang Lian Qiao Tang, Five-Aromatic Forsythia Decoction）。
组成：青木香（Aucklandiae Radix）、薰陆香（Olibanum）、鸡舌香（Caryophylli Flos）、沉香（Aquilariae Lignum Resinatum）、麻黄（Ephedrae Herba）、黄芩（Scutellariae Radix，各一分）；大黄（Rhei Radix et Rhizoma，八分）；麝香（Moschus，半分）；连翘（Forsythiae Fructus）、海藻（Sargassum）、射干（Belamcandae Rhizoma）、升麻（Cimicifugae Rhizoma）、枳实（Aurantii Fructus Immaturus，各二分）；竹沥汁（Bambusae Succus，三合）。
用法：用水四升，煎煮药物至一半量，加入竹沥汁，再煮取一升二合。婴儿出生一百日至二百日，一次服用二合。二百余日至……（原文此处似有缺漏，通常指更大月龄），一次服用五合。
《外台备急方》治疗白丹。
组成：苎麻根（Boehmeriae Radix，三斤）、小豆（Vigna Angularis，四升）。
用法：用水二斗煎煮，每日洗浴三四次。（兼治一切丹毒，效果奇妙。）
According to the *Shenghui Fang*: The so-called "Five-Color Dan" (Wu Se Dan) in infants is caused by the eruption of Dan toxin (Dan Du, a toxic heat rash), which changes color unpredictably, appearing green, yellow, white, black, or red. This occurs because the pathogenic heat of wind-toxin fluctuates in intensity, being either cold or hot, thus manifesting as Five-Color Dan.
The *Kong Family Tradition* records: Use Xiao Chai Hu Tang (Minor Bupleurum Decoction) prepared and administered according to standard methods. Apply the dregs of the decoction to the affected area; this is effective. Formula: Equal parts of Chuan Da Huang (Rhei Radix et Rhizoma), Chuan Mang Xiao (Natrii Sulfas), Zhi Zi Ren (Gardeniae Fructus), Huang Qin (Scutellariae Radix), Gan Lan Ye (Isatidis Folium Dry), and Shang Lu (Phytolaccae Radix). Grind into a fine powder, mix with water, and apply topically. Another method: Take four liang of Jiaoshugen (Ziziphus jujuba root bark), three liang of Danshen (Salviae Miltiorrhizae Radix), and one and a half liang of Juhua (Chrysanthemi Flos). Finely chop them. For every two liang, add five sheng of water and boil down to three sheng. Keep the infant away from wind and bathe him in water of appropriate temperature. Another method: Take one jin of Zhugenye (Boehmeriae Caudata leaf and root), and three he of Chixiaodou (Vigna angularis). Add five sheng of water, boil down to three sheng, and strain. Bathe the infant in warm liquid in a wind-free place. Another method: Take Qingliqiu with spines (Castanea mollissima fruit with spines), crush it, boil in water, and bathe the infant. Another method: Mix Puxi hui (Ash of rush mat) with Ji Bai (Albumen Ovi) and apply. Another method: Apply Niu Shi (Cow dung) to the lesion; change when dry. Another method: Apply rotten mud from under the pig trough; change when dry. Another method: Bind the skull of a sow and have the infant sleep on it as a pillow.
Regarding Bai Dan (White Dan): It is caused by the invasion of wind-cold qi, resulting in a white complexion. Initially, it presents with itching and pain, slight edema resembling raised wheals (like blown milk), without pain or redness, appearing only white.
Treatment: Take Suanmucao and Wuyecao (five-leaf herb), each five liang, extract juice, and apply. Alternatively, grind Chuan Da Huang (Rhei Radix et Rhizoma) into powder, mix with natural juice of Machixian (Portulacae Herba), and apply. Alternatively, crush Liaoye (Polygoni Herba) thoroughly and apply. Alternatively, crush Lanxiangye (Perillae Folium) thoroughly and apply. Alternatively, mix Cu (Vinegar) with Liangshangchen (dust from roof beams) and apply. Alternatively, mix Zhizhi (Pig fat) with Luji hui (Ash of deer horn) and apply. Alternatively, burn Zhu Fen (Pig feces) to ash, mix with Jizi Bai (Albumen Ovi), and apply.
Zhang Huan's Xiang Chi San: Treats Bai Dan accompanied by Zhutong (lingering pain/infection) and edema resembling raised wheals.
Ingredients: Xiang Chi (Fermented Soybean Preparatum, two liang, stir-fried until charred), Fulonggan (Fulguris Argillae, one liang).
Preparation: Grind into powder. Mix with raw oil and apply topically.
The *Shenghui Fang* also states: The so-called "White Rash" (Bai Zhen) is caused by wind qi stagnating within the muscles, clashing with wind pathogens, thereby forming rashes. The condition worsens in cold weather or windy conditions, but improves in sunny warmth or when the body is warm. This formula is suitable.
Ingredient: Zhishi (Aurantii Fructus Immaturus, chopped).
Usage: Boil in water, take the juice, and wash/wipe the Dan lesion.
To treat pediatric wind-heat toxic swelling presenting as white, or associated with E He Luo Li (malignant nodules and scrofula), Fu Gu Yong Ju (deep-seated abscesses), joint immobility, Bai Dan spreading over the whole body, and persistent itching of Bai Zhen. Use Wu Xiang Lian Qiao Tang (Five-Aromatic Forsythia Decoction).
Ingredients: Qingmuxiang (Aucklandiae Radix), Xunluxiang (Olibanum), Jitixiang (Caryophylli Flos), Chenxiang (Aquilariae Lignum Resinatum), Mahuang (Ephedrae Herba), Huang Qin (Scutellariae Radix) (each 1 fen); Dahuang (Rhei Radix et Rhizoma, 8 fen); Shexiang (Moschus, 0.5 fen); Lianqiao (Forsythiae Fructus), Haizao (Sargassum), Shegan (Belamcandae Rhizoma), Shengma (Cimicifugae Rhizoma), Zhishi (Aurantii Fructus Immaturus) (each 2 fen); Zhuli (Bambusae Succus, 3 he).
Usage: Add four sheng of water, boil the herbs until half remains, add Zhuli (Bambusae Succus), and boil to obtain one sheng and two he. For infants aged 100 to 200 days, administer two he per dose. For infants older than 200 days up to [age missing in text], administer five he per dose.
The *Waitai Beiji Fang* treats Bai Dan.
Ingredients: Zhugen (Boehmeriae Radix, three jin), Xiaodou (Vigna angularis, four sheng).
Usage: Boil in two dou of water. Bathe the infant three to four times daily. (Also effective for all types of Dan toxins.)