缠腰火丹蛇串名，干湿红黄似珠形，肝心脾肺风热湿，缠腰已遍不能生。
【注】此证俗名蛇串疮，有干湿不同，红黄之异，皆如累累珠形。干者色红赤，形如
云片，上起风粟，作痒发热。此属肝心二经风火，治宜龙胆泻肝汤；湿者色黄白，水
大小不等，作烂流水，较干者多疼，此属脾肺二经湿热，治宜除湿胃苓汤。若腰肋生之，
系肝火妄动，宜用柴胡清肝汤治之，其间小 ，用线针穿破，外用柏叶散敷之；若不速
治，缠腰已遍，毒瓦斯入脐，令人膨胀、闷呕者逆。
\r缠腰火丹图\p04-34a89.bmp\r
龙胆泻肝汤
龙胆草 连翘（去心） 生地 泽泻（各一钱） 车前子 木通 黄芩 黄连 当归 栀子（生
研） 甘草（生，各五分） 生军（便秘加之，二钱）
水二盅，煎八分，食前服。
【方歌】龙胆泻肝火丹生，形如云片粟多红，芩连栀胆车归尾，生地军翘泻木通。
除湿胃苓汤
苍术（炒） 浓朴（姜炒） 陈皮 猪苓 泽泻 赤茯苓 白术（土炒） 滑石 防风 山栀子
（生研） 木通（各一钱） 肉桂 甘草（生，各三分）
水二盅，灯心五十寸，煎八分，食前服。
【方歌】除湿胃苓火丹疮，脾肺湿热 白黄，胃苓汤用通栀子，滑石防风共作汤。
柏叶散
侧柏叶（炒黄为末） 蚯蚓粪（韭菜地内者佳） 黄柏 大黄（各五钱） 雄黄 赤小豆 轻粉（各
三钱）
上为细末，新汲水调搽，香油调搽更效。
【方歌】柏叶散搽火丹方，大黄赤豆柏雄黄，柏叶轻粉蚯蚓粪，研末香油调更良。
柴胡清肝汤（见头部鬓疽）
缠腰火丹，俗称蛇串疮。其形态有干、湿两种区别，颜色有红、黄之异，外观均像成串的珠子。此病多由肝、心、脾、肺四脏受风热或湿热邪气所致；若皮疹缠绕腰部一周，则属危重症，难以治愈。
【注释】此证俗名蛇串疮，有干性和湿性之分，颜色有红色和黄色的差异，都呈现出一串串珠子的形状。干性的表现为颜色红赤，形状像云片一样，表面起风疹粟粒，伴有瘙痒和发热。这属于肝经和心经的风火证，治疗适宜用龙胆泻肝汤（清泻肝胆实火的方剂）；湿性的表现为颜色黄白，水疱大小不等，破溃后流水糜烂，比干性者疼痛更重，这属于脾经和肺经的湿热证，治疗适宜用除湿胃苓汤（健脾燥湿、利水的方剂）。如果生于腰肋部，系肝火妄动所致，适宜用柴胡清肝汤治疗；其间的小水疱，可用线针穿破，外用柏叶散敷贴；若不迅速治疗，皮疹缠满腰部一圈，毒邪侵入脐部，导致腹部膨胀、胸闷呕吐的，为逆证（难治之症）。
龙胆泻肝汤
组成：龙胆草、连翘（去心）、生地黄、泽泻（各一钱）、车前子、木通、黄芩、黄连、当归、栀子（生研）、甘草（生用，各五分）。若大便秘结，加生大黄（二钱）。
煎服法：用水二盅，煎至八分，饭前服用。
【方歌】龙胆泻肝治火丹，形如云片粟粒多且红，黄芩、黄连、栀子、龙胆、车前子、当归尾，生地黄、大黄、连翘、泻木通。
除湿胃苓汤
组成：苍术（炒制）、厚朴（姜汁炒）、陈皮、猪苓、泽泻、赤茯苓、白术（土炒）、滑石、防风、山栀子（生研）、木通（各一钱）、肉桂、甘草（生用，各三分）。
煎服法：用水二盅，灯心草五十寸，煎至八分，饭前服用。
【方歌】除湿胃苓治火丹疮，脾肺湿热致色白黄，胃苓汤配伍木通、栀子，滑石、防风共同煮作汤。
柏叶散
组成：侧柏叶（炒黄研末）、蚯蚓粪（以韭菜地内的为佳）、黄柏、大黄（各五钱）、雄黄、赤小豆、轻粉（各三钱）。
用法：以上药物研为细末，用新汲水调匀外搽，用香油调匀外搽效果更佳。
Chanyao Huodan (Shingles), also known as Snake-String Sores, presents with dry and wet types, and red or yellow colors, resembling strings of pearls. It is caused by wind-heat or damp-heat affecting the Liver, Heart, Spleen, and Lung meridians; if the rash encircles the waist completely, it is intractable.
[Note] This condition is commonly called Snake-String Sores. There are dry and wet variations, with red and yellow color differences, all appearing like clusters of pearls. The dry type appears red, shaped like cloud patches, with wind-like millet-grain papules on the surface, accompanied by itching and fever. This belongs to wind-fire in the Liver and Heart meridians, and is treated with Longdan Xiegan Tang (Gentiana Liver-Draining Decoction). The wet type appears yellowish-white, with water blisters of varying sizes that break and weep fluid, causing more pain than the dry type. This belongs to damp-heat in the Spleen and Lung meridians, and is treated with Chushi Weiling Tang (Dampness-Removing Weiling Decoction). If it occurs on the waist and ribs, it is due to reckless movement of Liver fire, and should be treated with Chaihu Qinggan Tang (Bupleurum Liver-Clearing Decoction). Small blisters within the area should be punctured with a thread needle, and Baiye San (Cunninghamia Leaf Powder) applied externally. If not treated promptly, and the rash encircles the entire waist, allowing toxic factors to enter the umbilicus, leading to abdominal distension, chest oppression, and vomiting, this is considered a adverse prognosis (Ni syndrome).
Longdan Xiegan Tang (Gentiana Liver-Draining Decoction)
Ingredients: Gentianae Radix et Rhizoma (Longdancao), Forsythiae Fructum (Lianqiao, heart removed), Rehmanniae Radix (Shengdi), Alismatis Rhizoma (Zexie) (each 1 qian); Plantaginis Semen (Cheqianzi), Akebiae Caulis (Mutong), Scutellariae Radix (Huangqin), Coptidis Rhizoma (Huanglian), Angelicae Sinensis Radix (Danggui), Gardeniae Fructus (Zhizi, raw and ground), Glycyrrhizae Radix et Rhizoma (Gancao, raw) (each 0.5 qian). For constipation, add Rheii Radix et Rhizoma (Shengjun, 2 qian).
Preparation and Administration: Decoct 2 cups of water until reduced to 0.8 cup, take before meals.
[Fangge Verse] Longdan Xiegan treats Huodan, shape like cloud patches with many red millet grains, Huangqin, Huanglian, Zhizi, Longdan, Cheqianwei, Dangguiwei, Shengdi, Jun, Lianqiao, Xie, Mutong.
Chushi Weiling Tang (Dampness-Removing Weiling Decoction)
Ingredients: Atractylodis Rhizoma (Cangzhu, stir-fried), Magnoliae Officinalis Cortex (Noupu, ginger-stir-fried), Citri Reticulatae Pericarpium (Chenpi), Polyporus (Zuling), Alismatis Rhizoma (Zexie), Poria cum Rosa (Chifuling), Atractylodis Macrocephalae Rhizoma (Baizhu, earth-stir-fried), Talcum (Huashi), Saposhnikoviae Radix (Fangfeng), Gardeniae Fructus (Zhizi, raw and ground), Akebiae Caulis (Mutong) (each 1 qian); Cinnamomi Cortex (Rougui), Glycyrrhizae Radix et Rhizoma (Gancao, raw) (each 0.3 qian).
Preparation and Administration: Decoct 2 cups of water with 50 cun of Junci Medulla (Dengxincao) until reduced to 0.8 cup, take before meals.
[Fangge Verse] Chushi Weiling treats Huodan sores, Spleen-Lung damp-heat causes white-yellow color, Weiling Tang uses Mutong and Zhizi, Huashi and Fanggong make the decoction together.
Baiye San (Cunninghamia Leaf Powder)
Ingredients: Platycladi Cacumen (Baiye, stir-fried yellow and powdered), Lumbricus Excrement (Qiuyinfen, best from leek fields), Phellodendri Cortex (Huangbai), Rheii Radix et Rhizoma (Dahuang) (each 5 qian); Realgar (Xionghuang), Phaseoli Semen Rubrum (Chixiaodou), Calomelas (Qingfen) (each 3 qian).
Usage: Grind all into fine powder, mix with fresh drawn water for external application; mixing with sesame oil for external application is even more effective.
[Fangge Verse] Baiye San is the formula for applying to Huodan, Dahuang, Chixiaodou, Huangbai, Xionghuang, Baiye, Qingfen, Qiuyinfen, grind into powder and mix with sesame oil for better results.
Chaihu Qinggan Tang (Bupleurum Liver-Clearing Decoction) (See section on Bianju of the Head)