论曰小儿气血纯阳，肌肉柔脆，风毒邪热，易以致伤。若营气不从，逆于肉理，结成悍
毒疼
痛肿 非常，故名恶疮，其候或痒或痛，或赤根隐肉，硬不作脓，或穿穴作脓，久不得瘥，
治法随内外证疗之，则疮可愈。
治小儿恶疮。铅丹膏方
铅丹（十两） 风化锻石 猪脂（各一斤）
上三味，将二味同研细，以猪脂搜作饼，火烧通赤。如此五度，药成捣罗为末，湿疮干
贴，如干疮，即作膏，用猪脂调纸上贴。
治小儿恶疮。大黄汤洗方
大黄（生锉） 黄连（去须） 黄芩（去黑心） 泽兰 白矾枯 石楠（各一两） 戎
盐（一分） 蛇床子（炒三合）
上八味，粗捣筛，每以二两用水三升，煮取二升，去滓适寒温，以绵絮纳汤中，蘸洗之
，日三。
治小儿恶疮。茵芋汤浴方
茵芋（一两） 甘草（锉） 苦参（各三两） 细辛（去苗叶） 黄连（去须各二两） 蕤
仁（二十枚去皮） 上六味，粗捣筛，每以三两用水五升浸汁，煮取三升，去滓浴儿，逐日
用。
治小儿恶疮，遍身如麻豆状，包裹脓汁，乍痛乍痒。甘草散方
胡粉（炒令黄色五两） 黄连（去须） 黄柏（去粗皮锉各三两）
上三味，捣罗二味为散，与胡粉相和，一处研匀，敷疮上，日再，立验。
又方
豆豉（炒黄一合）
上一味，捣罗为末，敷疮上。
又方
虾蟆（一枚烧灰）
上一味，捣罗为细散，入麝香一分，一处同研匀，干敷疮上。
又方
柳枝叶（三握锉）
上一味，用水五升，煮至三升，去滓入盐少许，淋洗疮上。
治小儿头上恶疮，黄粉膏方
胡粉 黄连末（各一两） 水银（三分） 糯米（二十二粒研） 赤小豆（十四粒和黄
连捣）
上五味，先将水银于手掌中唾研化后，即以麻油调药，入水银和匀，涂疮上。
论述说：小儿的气血属于纯阳之体，肌肉柔软脆弱，风毒和邪热容易因此造成伤害。如果营气运行不畅，逆乱于肌肉纹理之间，凝结成猛烈有毒的肿痛，形态异常，所以称为恶疮。其症状表现为或痒或痛，有的根部发红且隐没在肉中，质地坚硬且不化脓；有的则破溃穿孔形成脓液，长久不能痊愈。治疗方法应根据内证和外证的不同进行调理，这样疮疡就可以治愈。
治疗小儿恶疮的铅丹膏方：
铅丹（十两）、风化锻石、猪脂（各一斤）。
以上三味药，将前两种药物一同研磨成细粉，用猪脂调和做成饼状，放入火中烧至通红。如此重复五次，药制成后捣碎过筛成为粉末。对于湿疮，直接干贴；如果是干疮，则制成膏剂，用猪脂调匀涂在纸上贴敷。
治疗小儿恶疮的大黄汤洗方：
大黄（生切）、黄连（去须）、黄芩（去黑心）、泽兰、白矾（枯）、石楠（各一两）、戎盐（一分）、蛇床子（炒制三合）。
以上八味药，粗捣筛碎，每次取二两，用水三升，煮取二升药液，滤去药渣，待温度适宜时，用棉絮蘸取药液清洗患处，每日三次。
治疗小儿恶疮的茵芋汤浴方：
茵芋（一两）、甘草（锉碎）、苦参（各三两）、细辛（去苗叶）、黄连（去须，各二两）、蕤仁（二十枚，去皮）。
以上六味药，粗捣筛碎，每次取三两，用水五升浸泡提取汁液，煮取三升，滤去药渣给小儿洗浴，每日使用。
治疗小儿恶疮，全身出现如麻豆状的皮疹，包裹着脓汁，时而疼痛时而瘙痒的甘草散方：
胡粉（炒至黄色，五两）、黄连（去须）、黄柏（去粗皮锉碎，各三两）。
以上三味药，将黄连和黄柏捣碎过筛成为散剂，与胡粉混合，一起研磨均匀，敷于疮口上，每日两次，立即见效。
又一方：
豆豉（炒黄，一合）。
以上一味药，捣碎过筛成为粉末，敷于疮口上。
又一方：
虾蟆（一只，烧成灰）。
以上一味药，捣碎过筛成为细散，加入麝香一分，一起研磨均匀，干敷于疮口上。
又一方：
柳枝叶（三把，锉碎）。
以上一味药，用水五升，煮至三升，滤去药渣，加入少许盐，淋洗疮口。
治疗小儿头上恶疮的黄粉膏方：
胡粉、黄连末（各一两）、水银（三分）、糯米（二十二粒，研碎）、赤小豆（十四粒，与黄连一同捣碎）。
以上五味药，先将水银放在手掌中，用唾液研磨至融化，然后用麻油调和药物，加入水银搅拌均匀，涂抹于疮口上。
Discussion states: Children's qi and blood are of a pure yang nature, their muscles are soft and fragile, making them susceptible to injury from wind-toxin and pathogenic heat. If Ying (nutritive) qi does not flow smoothly and rebels within the muscle tissue, condensing into fierce, toxic swelling and pain with abnormal manifestations, it is thus named "E Chuang" (Malignant Ulcer). Its symptoms may include itching or pain, red roots hidden within the flesh, hardness without suppuration, or perforation with pus formation, persisting for a long time without healing. The treatment method should follow the internal and external syndromes for therapy, so that the ulcer can be cured.
For treating E Chuang in children. Qian Dan Gao (Lead Tallow Ointment) Formula:
Qian Dan (Lead Carbonate, 10 liang), Feng Hua Duan Shi (Weathered Calcined Alun Stone), Zhu Zhi (Pig Fat) (each 1 jin).
Take the above three ingredients, grind the first two together into fine powder, mix with pig fat to form cakes, and burn over fire until thoroughly red. Repeat this process five times. After the medicine is prepared, pound and sieve into powder. For wet ulcers, apply dry; for dry ulcers, make into an ointment, mix with pig fat, spread on paper, and apply as a patch.
For treating E Chuang in children. Da Huang Tang (Rhubarb Decoction) Wash Formula:
Da Huang (Raw Rhubarb, cut), Huang Lian (Coptis Rhizome, remove stamens), Huang Qin (Scutellaria Root, remove black heart), Ze Lan (Lycopus Herb), Bai Fan Ku (Alum, calcined), Shi Nan (Photinia Leaf), Rong Yan (Rock Salt), She Chuang Zi (Cnidium Fruit, stir-fried) (each 1 liang; Rong Yan 1 fen; She Chuang Zi 3 he).
Coarsely crush and sieve the above eight ingredients. Take 2 liang per dose, add 3 sheng of water, decoct to obtain 2 sheng of liquid. Remove the dregs, adjust to a suitable temperature, dip cotton wool into the solution, and wash the affected area. Do this three times a day.
For treating E Chuang in children. Yin Yu Tang (Epimedium Decoction) Bath Formula:
Yin Yu (Epimedium Herb, 1 liang), Gan Cao (Licorice Root, cut), Ku Shen (Sophora Root) (each 3 liang), Xi Xin (Asarum Root, remove seedlings and leaves), Huang Lian (Coptis Rhizome, remove stamens) (each 2 liang), Rui Ren (Prunus Persica Kernel, 20 pieces, remove skin).
Coarsely crush and sieve the above six ingredients. Take 3 liang per dose, soak in 5 sheng of water to extract juice, decoct to obtain 3 sheng. Remove dregs and use for bathing the child. Use daily.
For treating E Chuang in children, where the whole body presents with lesions like hemp seeds or beans, wrapped in pus, alternating between pain and itching. Gan Cao San (Licorice Powder) Formula:
Hu Fen (Basic Lead Carbonate, stir-fried until yellow, 5 liang), Huang Lian (Coptis Rhizome, remove stamens), Huang Bo (Phellodendron Bark, remove coarse skin and cut) (each 3 liang).
Pound and sieve the latter two ingredients into powder, mix with Hu Fen, grind uniformly together, and apply to the ulcer. Apply twice a day; immediate effect is expected.
Another formula:
Dou Chi (Fermented Soybean, stir-fried until yellow, 1 he).
Pound and sieve this single ingredient into powder and apply to the ulcer.
Another formula:
Xia Ma (Toad, one piece, burned to ash).
Pound and sieve this single ingredient into fine powder, add 1 fen of She Xiang (Musk), grind uniformly together, and apply dry to the ulcer.
Another formula:
Liu Zhi Ye (Willow Branch and Leaves, three handfuls, cut).
Decoct this single ingredient in 5 sheng of water until reduced to 3 sheng. Remove dregs, add a little salt, and pour/wash over the ulcer.
For treating E Chuang on the head of children. Huang Fen Gao (Yellow Powder Ointment) Formula:
Hu Fen (Basic Lead Carbonate), Huang Lian Mo (Coptis Powder) (each 1 liang), Shui Yin (Mercury, 3 fen), Nuo Mi (Glutinous Rice, 22 grains, ground), Chi Xiao Dou (Red Adzuki Bean, 14 grains, pounded with Huang Lian).
First, grind the mercury in the palm of the hand with saliva until dissolved. Then, mix the medicine with Ma You (Sesame Oil), incorporate the mercury, blend uniformly, and apply to the ulcer.