取男子二十以来，无疾患，颜色红白，顶心剪切者，良。先以苦参水浸一宿，滤出
入瓶内，以火 赤，放冷研用，盖发为血余，男子八岁，肾气盛，齿更发长，是发因
人血气，为生长荣枯血盛之人，发润而黑。血枯之人，发燥而黄，味苦气小寒无毒，入
手足少阴经，为入血凉血养血止血，解毒养阴利水之用。头垢，头上垢腻也。味苦温，
其性滑润而下走入阳明，故主劳复，妇人吹乳，并淋闭不通也。
发 ， 乃发根，用宜陈久，烧灰入剂，一名血余，补阴甚捷。凡口吐血鼻流
血，血闷血晕血痢血淋，肠风崩带，即之即止。咽口疮，碗豆疮，伤风风 ，惊热惊
痫，得此易痊，通关格五癃，利小便水道，疗大人痉，且愈金疮。同鸡子黄熬油，敷孩
子火灼肿毒，烧黑灰，吹鼻内，止大人衄血狂来，解毒止痛，长肉消瘀。初剃胎发血之
嫩苗，老景得之，甚补衰涸。乱发常人落者，黑润为良，烧制同前，血症亦用，止赤
白痢，通大小便，误吞发绕喉，取自己发灰周送下，破伤风入脑，加何首末酒沃灌苏。
又和诸药熬膏，可贴痈疽消肿。篦下头垢，名百齿霜，为丸治淋闭不通，及伤寒劳复，
调膏疗口咽酸水，并百魅鬼邪。竹木刺在肉中，津和涂即出，飞丝入眼内，点两 立
效，卒中酒毒蕈毒，酒化服渐安，乳痈初起，酒服亦效。剪髭须烧灰，敷痈疮亦愈。
男阴毛，若合口咽汁，蛇咬毒不入腹伤人。
主治（痘疹合参） 人发补阴之功甚捷，凡痘鼻衄者，烧末吹之立止。胎发尤入疔毒，掩药上品。
选取二十岁以上、无疾病、面色红白相间、头顶头发被剪过的男子的头发，品质最佳。先将头发用苦参水浸泡一夜，滤出后放入瓶中，用火烤至通红，放冷后研磨使用。因为头发是“血余”（血液的剩余部分），男子八岁时肾气旺盛，牙齿更换、头发生长，说明头发源于人的气血。气血旺盛的人，头发润泽而黑；气血枯竭的人，头发干燥而黄。头发味苦，气小寒，无毒，入足少阴肾经和手少阴心经，具有入血分、凉血、养血、止血、解毒、养阴、利水的作用。
头垢，即头上油腻的污垢。味苦性温，其性质滑润且向下走入手阳明大肠经和足阳明胃经，因此主治劳复（大病初愈因劳累复发）、妇人吹乳（急性乳腺炎）以及淋证闭塞不通等症状。
发髻（指盘起的头发），乃发根，宜用陈久的，烧成灰入药，又名“血余”，补阴效果极快。凡是吐血、鼻出血、血闷、血晕、血痢、血淋、肠风、崩漏带下等症，服用后立即止血。对于咽喉口疮、豌豆疮（天花或麻疹类疾病）、伤风引起的风疹、惊热、惊痫，得到此药容易痊愈。它能通关格、治疗五种癃闭（排尿困难）、通利小便水道，治疗成人痉病，并且能治愈金创（金属利器造成的创伤）。与鸡蛋黄一起熬油，敷在儿童火灼肿毒处；烧成黑灰，吹入鼻内，可止住大人突发的鼻衄血，具有解毒止痛、生肌长肉、消散瘀血的功效。刚剃下的胎发是血的嫩苗，年老体衰者得到它，能很好地补充衰败枯竭的气血。常人脱落的乱发，以黑润者为佳，烧制方法同上，血症也适用，能止赤白痢疾，通大小便。若误吞头发缠绕喉咙，取自己头发的灰用水送服，可破之。若破伤风邪入脑，加何首乌末，用酒调和灌服可苏醒。又可与诸药一起熬膏，贴敷痈疽以消肿。篦子刮下的头垢，名为“百齿霜”，制成丸药治疗淋证闭塞不通及伤寒劳复，调成膏剂治疗口咽酸水，并治各种魅惑鬼邪之病。竹木刺扎在肉中，用唾液调和涂抹即可取出；飞丝进入眼内，点药两眼立即见效；卒中酒毒或菌蕈毒，用酒化开服用逐渐安宁；乳痈初起，用酒送服也有效。剪下的胡须烧成灰，敷于痈疮也能治愈。男性的阴毛，如果配合口中咽下的津液，蛇咬中毒时可使毒素不入腹伤人。
【主治】（痘疹合参）人发补阴的功效极快，凡是痘疹并发鼻衄的患者，将头发烧成末吹入鼻中，立即可止。胎发尤其擅长治疗疔毒，列为药物上品。
Select the hair of a male aged twenty or above, who is free from disease, has a complexion that is red and white mixed, and whose crown hair has been cut. This is considered of good quality. First, soak the hair in a decoction of *Sophorae Flavescentis Radix* (Kushen, 苦参) overnight, filter it out, place it in a bottle, heat it over fire until red hot, allow it to cool, and then grind it for use. Hair is known as "Xueyu" (Blood Remainder), derived from blood. When males reach eight years old, their Kidney Qi becomes vigorous, teeth change, and hair grows. Thus, hair originates from human Qi and Blood. In individuals with abundant Blood and Qi, hair is lustrous and black; in those with depleted Blood and Qi, hair is dry and yellow. Hair tastes bitter, has a slightly cold nature, is non-toxic, and enters the Foot-Shaoyin Kidney Meridian and Hand-Shaoyin Heart Meridian. It functions to enter the blood level, cool blood, nourish blood, stop bleeding, resolve toxicity, nourish Yin, and promote diuresis.
Head dandruff/scum refers to the greasy dirt on the scalp. It tastes bitter and is warm in nature. Its property is slippery and descending, entering the Hand-Yangming Large Intestine Meridian and Foot-Yangming Stomach Meridian. Therefore, it primarily treats relapse due to overexertion (Laofu), acute mastitis (Chui Ru) in women, and strangury with obstruction.
Fa Ji (coiled hair), which refers to the hair roots, should be used if aged and stored for a long time. Burned into ash for medicinal use, it is also named "Xueyu" (Blood Remainder) and has a very rapid effect in nourishing Yin. It immediately stops bleeding in cases of hematemesis, epistaxis, blood stagnation, syncope due to blood, bloody dysentery, hematuria, intestinal wind, metrorrhagia, and leukorrhea. For throat and mouth ulcers, smallpox/measles-like eruptions (Wandou Chuang), wind-cold causing wind-rashes, febrile convulsions, and epileptic seizures caused by fright-heat, obtaining this remedy facilitates recovery. It opens blockages in the throat and diaphragm (Guan Ge), treats five types of strangury (Wu Long), promotes urination, treats spasms in adults, and heals metallic wounds (Jinchuang). When boiled with egg yolk to make oil, it can be applied to burns and swelling in children. Burned into black ash and insufflated into the nose, it stops sudden severe epistaxis in adults, resolves toxicity, relieves pain, promotes flesh growth, and dissipates stasis. Newborn hair (Tai Fa) shed at birth is the tender sprout of blood; for the elderly, it greatly tonifies decline and depletion. Loose hair fallen from ordinary people, preferably black and lustrous, is processed similarly and used for blood disorders, stopping bloody and white dysentery, and unblocking bowel and bladder movements. If hair is accidentally swallowed and wraps around the throat, taking ash of one's own hair and swallowing it with water can break the obstruction. If tetanus pathogen enters the brain, adding powder of *Polygoni Multiflori Preparata Radix* (Heshouwu, 何首乌) and administering with wine can restore consciousness. Furthermore, when combined with other herbs and boiled into a paste, it can be applied externally to carbuncles and sores to reduce swelling. Head scum scraped off with a comb is named "Baichi Shuang" (Frost of Hundred Teeth); made into pills, it treats strangury and relapse after typhoid; mixed into a paste, it treats acid regurgitation in the mouth and throat, and various魅 (demonic) ailments. For bamboo or wood splinters embedded in flesh, applying saliva mixed with the powder extracts them. For silk fibers entering the eye, instilling the solution brings immediate relief. For acute alcohol poisoning or mushroom poisoning, dissolving it in wine and drinking leads to gradual improvement. For early-stage mastitis, taking it with wine is also effective. Beard hair burned into ash applied to sores and carbuncles also cures them. Male pubic hair, when combined with saliva, prevents snake venom from entering the abdomen and harming the person upon a bite.
[Main Indications] (Integration of Smallpox and Rash Treatments): Human hair has a very swift effect in nourishing Yin. For patients with smallpox/rash accompanied by epistaxis, insufflating the powdered ash stops bleeding immediately. Newborn hair is particularly effective for treating Ding toxins (furuncles/carbuncles) and is listed as a top-grade medicine.