【方歌】蝼蛄疖即蟺拱头，势小势大各有由，胎毒坚小多衣膜，
暑热形大功易收。
【注】此证多生儿头上，俗名貉〔豸脑〕，未破如曲蟺拱头，
破后形似蝼蛄串穴。有因胎中受毒者，其疮肿势虽小，
而根则坚硬，溃破虽出脓水，而坚硬不退，疮口收敛，
越时复发，本毒未罢，他处又生，甚属缠绵难敛。宜用
三品一条枪插于孔内，化尽坚硬衣膜，换撒生肌散，贴
玉红膏以收敛之，不致再发也。
亦有暑热成毒者，大如梅李，相联三、五枚，溃破脓出
，其口不敛，日久头皮串空，亦如蝼蛄串穴之状。宜贴
绀珠膏，拔尽脓毒，将所串之空皮剪通，使无藏脓之处
，用米泔水日洗一次，干撒生肌散，贴万应膏甚效。有
因疮口开张，日久风邪袭入，以致疮口周围作痒，抓破
津水，相延成片，形类黄水疮者，宜用败铜散搽之，忌
鱼腥发物。
方剂：三品一条枪
组成：白砒（一两五）明矾（三两）
砒、矾二味，共研细末入小罐内，加炭火〔火段〕
红，青烟已尽，叠起白烟片时，约上、下红彻住火，取
罐安地上，一宿取出，约有砒、矾净末一两，加雄黄二
钱四分，乳香一钱二分，共研极细，厚糊槎成线条，阴
干。疮有孔者，插入孔内；无孔者，先用针通孔窍，早
晚插药二条。插至三日后，孔大者，每插十余条。插至
七日，孔内药条满足方住。患处四边，自然裂开大缝，
共至十四日前后，其坚硬衣膜及疔核、瘰历、痔漏诸管
，自然落下，随用汤洗，搽玉红膏。虚者兼服健脾补剂
，自收然敛。
【方歌】神奇三品一条枪，能医坚硬衣膜疮，雄乳白砒矾生用，
研末〔火段〕炼搓条良。
又方：败铜散
组成：化铜旧罐子一个，研为细末，用香油调敷，自能渗湿袪
痒，疮口易敛。
【方歌】败铜散治溃风伤，骚痒破津脂水疮，化铜旧罐研细末，
香油调敷渗湿良。
又方：绀珠膏、万应膏、生肌散、玉红膏（俱见溃疡门）
【方歌】蝼蛄疖就是蟺拱头，病情轻重各有原因，胎毒所致者疮形坚硬较小且多有衣膜包裹，暑热所致者疮形较大且容易收敛愈合。
【注】此证多发生于小儿头部，俗称貉脑（或作“豸脑”），未破溃时像曲蟺拱头，破溃后形状像蝼蛄串穴。有的因胎中受毒所致，其疮肿势虽小，但根部坚硬，溃破后虽流出脓水，但坚硬不退，疮口虽然收敛，过一段时间又复发，根本的毒邪未除，别处又生新疮，非常缠绵难愈。适宜用三品一条枪插入孔内，化尽坚硬的衣膜，然后换撒生肌散，贴玉红膏以收敛疮口，这样就不会再复发。
也有因暑热成毒所致者，疮大如梅李，相互连接三四五枚，溃破后脓液流出，疮口不收敛，日久头皮内部串空，也如同蝼蛄串穴的形状。适宜贴绀珠膏，拔尽脓毒，将所串通的空皮剪开，使没有藏脓之处，用米泔水每天清洗一次，干燥后撒生肌散，贴万应膏效果很好。有的因疮口开张，日久风邪袭入，导致疮口周围发痒，抓破后流出津水，蔓延成片，形状类似黄水疮者，适宜用败铜散搽之，忌食鱼腥发物。
方剂：三品一条枪
组成：白砒（一两五钱）明矾（三两）
砒、矾两味药，共同研成细末放入小罐内，加炭火煅烧至通红，青烟已尽，出现叠起的白烟片刻，大约上下都烧红透彻后停火，取罐放在地上，过夜取出，约有砒、矾净末一两，加入雄黄二钱四分，乳香一钱二分，共同研磨极细，用厚糊搓成线条状，阴干。疮有孔者，插入孔内；无孔者，先用针通开孔窍，早晚各插药条两条。插至第三日后，孔大的，每次插十余条。插至第七日，孔内药条填满即可停止。患处四边，自然裂开大缝，共约十四日前后，其坚硬的衣膜及疔核、瘰疬、痔漏等各种管状物，自然脱落，随后用汤水洗，搽玉红膏。体虚者兼服健脾补剂，自然收敛愈合。
【方歌】神奇的三品一条枪，能医治坚硬的衣膜疮，雄黄、乳香、白砒、明矾生用，研末煅炼搓成条状效果好。
又方：败铜散
组成：化铜旧罐子一个，研为细末，用香油调敷，自能渗湿祛痒，疮口容易收敛。
[Formula Song] Lougu Jie (Mole Cricket Boil) is also known as Shan Gong Tou (Earthworm Arching Head); its severity varies due to different causes. When caused by fetal toxin, the lesion is hard and small, often covered with a membrane; when caused by summer-heat, it is large and easily heals.
[Annotation] This condition mostly occurs on the heads of infants, commonly known as He Nao (Badger Brain). Before ulceration, it resembles Shan Gong Tou; after ulceration, it looks like mole crickets burrowing through soil. Some cases are due to toxins received in the womb. Although the swelling is small, the base is hard. Even after pus drains, hardness persists. Although the wound closes temporarily, it recurs after some time because the root toxin remains, and new sores appear elsewhere. This is very persistent and difficult to heal. It is appropriate to insert Sanpin Yitiao Qiang (Three-Treasure Single-Spear) into the hole to dissolve the hard membrane, then apply Shengji San (Flesh-Generating Powder), and cover with Yuhong Gao (Jade Red Ointment) to promote healing and prevent recurrence.
In other cases caused by summer-heat toxicity, the lesions are as large as plums or peaches, connected in clusters of three to five. After ulceration and pus drainage, the wounds do not close. Over time, the scalp becomes hollowed out internally, resembling mole cricket burrows. It is appropriate to apply Gan Zhu Gao (Indigo Pearl Ointment) to draw out pus and toxins, cut open the hollowed skin to eliminate pockets for pus accumulation, wash once daily with rice water, apply Shengji San when dry, and cover with Wanying Gao (Universal Ointment) for excellent results. In some cases, due to prolonged exposure of open wounds, wind-pathogens invade, causing itching around the wound. Scratching leads to exudate spreading in patches, resembling Huangshui Chuang (Yellow Water Blister). It is appropriate to apply Baicou San (Rotten Copper Powder) and avoid fish and other triggering foods.
Formula: Sanpin Yitiao Qiang (Three-Treasure Single-Spear)
Composition: Bai Pi (White Arsenic, 1.5 qian), Ming Fan (Alum, 3 liang).
Grind Bai Pi and Ming Fan into fine powder and place in a small jar. Calcine over charcoal fire until red-hot. When blue smoke ceases and white smoke rises in layers for a moment, stop heating once the top and bottom are thoroughly red. Place the jar on the ground overnight. The resulting pure powder of arsenic and alum weighs approximately 1 liang. Add Xionghuang (Realgar, 2.4 qian) and Ruxiang (Frankincense, 1.2 qian), grind extremely finely, mix with thick paste, roll into thread-like shapes, and dry in shade. For ulcers with holes, insert the threads directly; for those without, pierce a hole first with a needle. Insert two threads morning and evening. After three days, for larger holes, insert more than ten threads at a time. By the seventh day, fill the hole completely and stop. The surrounding tissue will naturally split open. Around the fourteenth day, the hard membranes, carbuncle nuclei, scrofula nodes, and fistula tracts from hemorrhoids will naturally fall off. Wash with decoction afterward and apply Yuhong Gao. For patients with deficiency, administer spleen-strengthening tonics concurrently to facilitate natural healing.
[Formula Song] The magical Sanpin Yitiao Qiang treats hard-membrane sores; Realgar, Frankincense, White Arsenic, and Alum are used raw, ground, calcined, and rolled into threads for best effect.
Another Formula: Baicou San (Rotten Copper Powder)
Composition: One old copper-smelting pot, ground into fine powder. Mix with sesame oil for application. It naturally promotes dampness drainage, relieves itching, and facilitates wound closure.
[Formula Song] Baicou San treats ulcerations complicated by wind injury, characterized by itching, broken skin, and oozing fluid; grinding old copper pots into fine powder and mixing with sesame oil effectively drains dampness.
Other Formulas: Gan Zhu Gao (Indigo Pearl Ointment), Wanying Gao (Universal Ointment), Shengji San (Flesh-Generating Powder), Yuhong Gao (Jade Red Ointment) (all see under the section on Ulcers).