足三阴经皆起于足指，气血沮而不行，结于指甲之间能成甲疽。凡以经络之所流注，非
特肌肉之病也。或得于剪甲伤肌，或得于甲长侵肉，或得于履 之不适，使气血沮遏而
不通，腐溃为疽，久则烂指，上引于胫膝之间，而疮 者是已。然病在四末，不必治其
内，惟涂敷涤濯，去恶而除秽，及适其行覆则论矣。
按∶足指在人体最下，气血易沮，药力难到，虚弱之人，小有破损，即成疮疡，久
而不敛，况其大者，非大补气血，岂能易愈。此云病在四末，不必治内，非通论也。
一妇修甲伤次指，成脓不溃， 痛至手，误敷冷药，以致通溃，饮食少思，彼为毒瓦斯
内攻，诊脉沉细，此痛伤胃气而然。遂刺之，服六君子加藿香、当归，食进，更以八珍汤
加黄 、白芷、桔梗，月余而愈。 一人伤拇指，色紫不痛，服托里药，及灸五十余壮，
作痛溃脓而愈。 一幼女，因冻伤两足，至春发溃，指俱坏，令取之，服大补药而愈。
一女，患嵌甲伤指，年余不愈，日出脓数滴。予谓∶足大指乃脾经发源之所，宜灸患处，使
瘀肉去，阳气至，疮口自合，否则不治。彼忽之，不早治，后变劳症而殁。盖至阴之下，
血气难到，女人患此，多因扎缚，致血脉不通，或被风邪所袭，则无血气荣养，遂成死
肉。惟当壮脾胃，行经络，生血气则愈。有
成破伤风，以致牙关紧急，口眼 斜者，先玉真散一二服，后投以生血通经则可。 一
男子，修伤足指，色黑为痛而欲脱。予曰∶此因阳气虚，不能运达于患处也，急去之，速
服补剂，以壮元气，否则死肉延足，必不救矣。不信，果黑烂上胫而死。大抵手足气血
罕到之地，或生疮，或伤损，若戕其元气，邪气愈甚，溃烂延上必死。不溃而色黯者亦死。
若骨断筋皮尚连者，急剪去之。
〔精要〕 治甲疽，因剔甲伤肌，或因甲长侵肉，遂成疮肿痛。复缘穿窄靴，研损四
边，肿 黄水出，浸淫相染，五指俱烂，渐渐引上脚趺，泡浆四边，起如火烧疮。日夜
倍增，医方所不能疗者。用绿矾五两，形色似朴硝而绿色，置于铁板上，聚炭封之，吹
令火炽，其矾即沸，流出色赤如熔金汁者是真也。候沸定汁尽，去火待冷，取出研细，色
似黄丹收之。先以盐汤洗疮，帛挹干，用此敷之愈。
圣惠蛤蟆散 治甲疽，皮浓肿痛。
蛤蟆灰（半两） 黄连（研末） 腻粉（各半分） 麝香（研） 雄黄（研） 枯白矾（研，各半钱） 杏
仁（七粒，熬黑，研如泥） 鹿角（七寸，烧透，细研末） 蚺蛇胆（半钱）
上相和研匀，以腊猪脂调如膏。先以甘草、蛇床、槐白皮煎汤，洗疮拭干。敷药以
油单纸裹，外更着绵裹之二日，其剩肉、剩甲皆当自落，三日一换。
猪蹄汤 治甲疽，及诸痈疽恶疮，有 肉。
猪蹄（生者，一双） 白蔹 白芷 野狼牙 芍药（各三两） 黄连 黄芩 大黄 独活（各
二两）
上 咀。先以水三斗，煮猪蹄至一斗五斤，去蹄入药更煮至五升。候温洗疮，日三
次。
白矾散 治男女血风毒瓦斯，攻手足指生甲疽疮久不瘥者， 肉裹甲疼痛，出血不定，
用此缩肉干疮。
白矾 石胆（各半两） 麝香 麒麟竭 朱红（各一分）
上将白矾、石胆于铁器内，以炭火 过，入后三味同研令细。每用少许，干掺疮上，以
帛子缠定，日两三度换之。
白矾散 治甲疽。
白矾（烧灰，一两） 麝香 芦荟 蚺蛇胆（各半分，研细）
先以浆水洗疮，干敷之。洗疮日三两上，以瘥为度。
马齿散 治甲疽。
墙上马齿苋（阴干，一两） 木香 丹砂（研细） 盐（研细，炙，各二钱半）
上除丹砂、盐外，锉碎拌匀。于熨斗内，以皮灰火烧过，取出细研。即以丹砂、盐末
再炒匀。旋取敷疮上，日三两度。
茹膏 治甲疽，日夜培增，赤肉生甲边裹甲者。
茹 黄 （各二两） 猪脂
上 咀。苦酒浸一宿，与猪脂一处微火上煎取三合，绞去渣。以涂疮上，日三两度，
其赤肉即消散。
绿矾散（危氏） 治甲疽。
绿矾（半两，烧熟） 芦荟（二钱半） 麝（一字，各研如粉）
上绢袋盛，药纳所患处指袋中，绵扎定，瘥为度。
蛇黄散（《海上方》） 治甲疽肿烂，生脚指甲边，赤肉努出，时瘥时发。又治嵌甲生入
肉，常血疼痛。
雄黄（半两） 蛇蜕皮（一分，烧）
上同研如粉。先以温泔，洗疮上软，以尖刀子割去甲角，拭干，药敷上，用软帛裹
半日许，药温即易。一日即除痛便止。一方，用浆水洗净，以橘刺破。一方，有黄 ，无
雄黄。
乳香敷方 治甲疽， 肉裹甲，脓血疼痛不瘥。
乳香 胆矾（各等分）
上研细，时时敷之。大凡此疾须是剔去
甲，不药亦愈。或已成疮，久不瘥，即用此方。一方，二味烧灰，为末敷之。一方，用
矾烧灰，敷疮。
牡蛎散 治甲疽。
上用牡蛎头， 研末。每服二钱，研靛花酒调下。一日三服。
乌梅散 治甲疽多年不瘥， 肉、脓血疼痛。
上用乌梅十枚，烧灰研为散。敷疮上，日三易。方用盐梅烧灰敷；烂捣裹，亦可。
〔丹〕 嵌甲、陷甲、割甲成疮，久年不瘥者，用黄柏、乌头尖等分，为末。洗净贴
之。
华佗治嵌甲累效方
砂 乳香（并研，各一钱） 腻粉（半钱） 橄榄核（烧存性，三枚） 黄丹（一字）
上为末，以生麻油调。先以盐汤洗净，挹干敷之，二次效。
砂糖方 治嵌甲。
上用琥珀糖是砂糖，熬成小球儿者，烧存性，入轻粉、麝香，麻油敷指甲嵌入肉者，
不过一两日自烂。陈仲山寺丞方云∶治嵌甲，别生好者，不病者，无所损，神效。
乳没散 治嵌甲。
用紫马粪三块，各青布一片包了，于新瓦上，炭火 存性，研细末。每半两入没药
十文，轻粉十文，麝香少许。先以葱椒汤洗拭干，口含甘草浆水，吐在疮上，再洗拭净
敷药。湿者干搽，干者生油调涂。初贴一夜极痛，不过三次即去根本。昔有人患此二十
五年，百药不效，一敷而安。
乌倍散（《百一选方》） 治嵌甲 草乌头（半两） 白牵牛（一两） 五倍子（四两，
全者） 龙骨（二钱半）
上先将三物捶碎同炒。五倍子令焦黑色，去三物不用。只取五倍子为末。疮干用麻油
调涂，湿即干贴。
黄连散（《百一》） 治嵌甲。
黄连 韶粉 黄柏 软石膏（ ，各等分）。
上为细末。用水洗疮令净，软帛 干。以新汲水调涂疮上，两日一易妙。
香胭脂散（《百一》，一名麝香散） 治嵌甲，侵肉不瘥。
五倍子（烧黑，存性） 染胭脂（各等分） 麝香（少许）
上研细末搽。（五倍子生用，亦得。）
雄蝉散 治嵌甲。
雄黄（通明者） 蝉蜕（三枚，酥炙，各为细末）
上研和匀。湿者干搽，干者用津，入轻粉少许，调涂。
陀僧散 治割甲侵肉不瘥。
白矾（飞过） 密佗僧（各等分）
上为末，干搽不定，一片帛裹之，亦治脚臭。一方，用 砂不用陀僧，搽裹之。
黄 方 治陷甲生入肉，常有血疼痛。
黄 当归（各等分）
上为末，贴疮上，若有恶肉，更研少许硫黄末同贴。
水驻车丸 治嵌甲脓出，痛不可忍。
上 水口噙净洗。却用驻车丸研细，敷之。（方见杂病滞下。）
又方 治嵌甲，用乳香研细搽之。
又方 治欲去甲者，用绵逐旋折入甲内，渐添之 起，次用剪子去之。
治嵌甲 以鸦嘴胆矾，为末，搽之。
乳香散 治嵌甲，痛不可忍，有妨步履。
紫藤香（半两） 乳香（半钱） 古半两钱（半钱） 轻粉（少许） 麝香当门子（少许）
上为末，细绢罗过，每用少许。先以甘草汤洗患处，用旧绢挹干。然后敷药，即以
灯草塞之。
诃子散 治嵌甲流脓，经久不瘥。
诃子（二枚） 降真香 青黛（各一钱，研） 五倍子（半两）
上为末，次入青黛一处研匀。先用葱盐汤洗净，剪去指甲，用药干贴缝内，或用麻
油调敷。
胆矾散 治嵌甲。
胆矾（一两） 麝香（一字，二味同研细）
上先以葱盐汤，洗净患处挹干，敷药少许。
神应散 治足大指角急，为甲所入肉，便刺作疮，不可着靴履，脚指湿烂，妇人有此。
上白矾烧汁尽，取末着疮中，食恶肉生好肉，细细割去甲角，旬日即瘥。加雄黄少
许，同研掺之。
The three Yin meridians of the foot all originate from the toes. If Qi and Blood stagnate and fail to circulate, condensing between the nail and the flesh, it can form Onychia (Jia Ju). This condition involves the flow and distribution of the meridians, not merely a disease of the muscles. It may result from trimming nails and injuring the skin, or from overgrown nails invading the flesh, or from ill-fitting footwear causing Qi and Blood obstruction and blockage, leading to putrefaction and ulceration into a carbuncle. Over time, this can rot the fingers and extend upwards to the shins and knees, resulting in sores. However, since the disease is located at the extremities, internal treatment is not necessarily required; rather, topical applications, washing, removal of necrotic tissue, and wearing comfortable shoes are sufficient.
Commentary: The toes are at the lowest part of the body, where Qi and Blood easily stagnate and medicinal efficacy is difficult to reach. In weak individuals, even minor injuries can lead to sores that fail to heal for a long time, let alone severe cases. Without substantial tonification of Qi and Blood, how can recovery be expected? The statement that diseases at the extremities do not require internal treatment is not a universal principle.
A woman injured her second toe while trimming her nails, developing pus but no rupture, with pain radiating to her hand. She mistakenly applied cold-natured external medicines, causing complete ulceration and loss of appetite. Her pulse was deep and fine, indicating that the pain had damaged Stomach Qi rather than toxic invasion. I performed acupuncture to drain the pus and administered Liu Jun Zi Tang (Six Gentlemen Decoction) with Huo Xiang (Patchouli Herb) and Dang Gui (Angelica Sinensis), which improved her appetite. Subsequently, Ba Zhen Tang (Eight Treasures Decoction) with Huang Qi (Astragalus Root), Bai Zhi (Angelica Dahurica), and Jie Geng (Platycodon Root) was given, leading to recovery after more than a month.
A man injured his thumb, which turned purple but was painless. He took formulas to support the interior and expel pus, along with fifty-plus moxa cones. Pain ensued, followed by suppuration and healing.
A young girl suffered frostbite on both feet, which ulcerated in spring, destroying all her toes. After debridement of the necrotic tissue, she recovered following administration of strong tonic herbs.
A woman suffered from an ingrown toenail for over a year, discharging several drops of pus daily. I stated: The big toe is the origin point of the Spleen Meridian. Moxibustion should be applied to the affected area to remove blood stasis and necrotic tissue, allowing Yang Qi to arrive and the wound to close naturally; otherwise, it cannot be cured. She ignored this advice and delayed treatment, eventually dying of consumptive disease. Generally, at the extreme Yin lower parts, Qi and Blood struggle to reach. Women often suffer from this due to tight binding causing meridian obstruction, or wind-pathogen invasion, leading to a lack of nourishment and formation of dead flesh. Treatment must strengthen the Spleen and Stomach, unblock the meridians, and generate Qi and Blood. Some cases develop Tetanus (Po Shang Feng), characterized by trismus and facial paralysis. Initially, Yu Zhen San (Jade True Powder) should be taken, followed by blood-generating and meridian-unblocking herbs.
A man injured his toe while trimming, turning black and painful, threatening to detach. I said: This is due to deficient Yang Qi failing to reach the site. The necrotic tissue must be removed immediately, and strong tonics taken to boost Yuan Qi; otherwise, the necrosis will spread up the leg, and death is inevitable. He did not believe me, and indeed, black rot spread to his shin, leading to death. Generally, the hands and feet are areas rarely reached by Qi and Blood. If sores or injuries occur and Yuan Qi is damaged, pathogenic factors intensify, and upward spreading ulceration leads to death. Non-ulcerated but dark-colored lesions also indicate death. If bones are broken but tendons and skin remain connected, immediate amputation is necessary.
[Essentials] To treat Onychia caused by nail trimming injury or overgrown nails invading flesh, resulting in swollen, painful sores: Further irritation from narrow boots grinding the sides causes swelling, yellow fluid discharge, and cross-infection, rotting all five toes and extending up the dorsum of the foot with blistering resembling burns. Day and night worsening, resistant to medical treatment. Use 5 liang of Green Vitriol (Lv Fan), which resembles Mirabilite (Pu Xiao) in shape but is green. Place on an iron plate, cover with charcoal, seal, and blow fire until boiling. True vitriol flows out as red liquid like molten gold. Wait for boiling to stop and liquid to dry, remove from fire, cool, grind finely, and store when color resembles Yellow Lead Oxide (Huang Dan). First wash the sore with salt water, dry with cloth, apply this powder, and it will heal.
Sheng Hui Toad Powder treats Onychia with thick, swollen, painful skin.
Toad Ash (Ban Liang), Coptis Rhizome (Lian Lian, ground), Calomelas (Ni Fen, half ban fen each), Musk (She Xiang, ground), Realgar (Xiong Huang, ground), Calcined White Alum (Ku Bai Fan, ground, half qian each), Apricot Kernels (Xing Ren, seven grains, roasted black, ground to paste), Deer Antler (Lu Jiao, seven cun, thoroughly burned, finely ground), Rattlesnake Gallbladder (Ran She Dan, half qian).
Mix and grind evenly. Blend with lard from the twelfth lunar month to form a paste. First wash the sore with decoction of Licorice Root (Gan Cao), Cnidium Fruit (She Chuang Zi), and Sophora Bark (Huai Bai Pi), then dry. Apply medicine wrapped in oil paper, then cotton, changing every two days. Remaining flesh and nails will fall off naturally. Change dressing every three days.
Pig Trotter Soup treats Onychia and various malignant ulcers with necrotic tissue.
Raw Pig Trotters (one pair), Akebia Caulis (Bai Lian), Angelica Dahurica (Bai Zhi), Wild Wolf's Tooth (Ye Lang Ya), Peony Root (Shao Yao) (each 3 liang), Coptis Rhizome (Huang Lian), Scutellaria Root (Huang Qin), Rhubarb (Da Huang), Notopterygium Rhizome (Du Huo) (each 2 liang).
Chop ingredients. Boil trotters in 3 dou of water until reduced to 1.5 dou. Remove trotters, add herbs, boil until reduced to 5 sheng. Warm and wash sores three times daily.
White Alum Powder treats blood-wind toxins attacking fingers/toes causing chronic Onychia, with necrotic tissue wrapping the nail, pain, and irregular bleeding. Use this to shrink flesh and dry sores.
White Alum (Bai Fan), Melanterite (Shi Dan) (each half liang), Musk (She Xiang), Dragon's Blood (Qi Lin Jie), Vermilion (Zhu Hong) (each one fen).
Calcine White Alum and Melanterite in an iron vessel over charcoal fire. Add the other three ingredients and grind finely. Sprinkle small amounts directly onto the sore, bind with cloth, changing two to three times daily.
White Alum Powder treats Onychia.
Calcined White Alum (Bai Fan, 1 liang), Musk (She Xiang), Aloe (Lu Hui), Rattlesnake Gallbladder (Ran She Dan) (each half ban fen, ground fine).
Wash sore with sour water, apply dry. Wash 2-3 times daily until healed.
Portulaca Powder treats Onychia.
Wild Purslane (Ma Chi Xian, dried in shade, 1 liang), Costus Root (Mu Xiang), Cinnabar (Dan Sha, ground fine), Salt (Yan, ground fine, roasted, each 2.5 qian).
Except for Cinnabar and Salt, chop and mix well. Roast in an ironing pan over wood ash fire, grind fine. Then stir-fry with Cinnabar and Salt powders. Apply fresh to sores 2-3 times daily.
Kushen Paste treats Onychia worsening day and night, with red flesh growing around the nail.
Kushen (Radix Sophorae Flavescentis), Astragalus Root (Huang Qi) (each 2 liang), Lard (Zhu Zhi).
Chop ingredients. Soak in vinegar overnight, simmer with lard over low heat to extract 3 he. Strain dregs. Apply to sores 2-3 times daily; red flesh will dissipate.
Green Vitriol Powder (Wei Shi) treats Onychia.
Green Vitriol (Lv Fan, half liang, roasted), Aloe (Lu Hui, 2.5 qian), Musk (She, one zi, each ground to powder).
Place in silk bag, insert into pouch around affected finger, tie tightly with cotton. Continue until healed.
Snake Yellow Powder (Hai Shang Fang) treats swollen/rotten Onychia at toe nail edges with protruding red flesh, recurring intermittently. Also treats ingrown nails invading flesh with constant bloody pain.
Realgar (Xiong Huang, half liang), Snake Slough (She Tui Pi, one fen, burned).
Grind to powder. Soften sore with warm rice water, cut nail corner with sharp knife, dry, apply powder, wrap with soft cloth for half day, change when warm. Pain stops within one day. Alternative: Wash with sour water, puncture with orange thorn. Alternative: Contains Huang Qi, no Realgar.
Frankincense Application treats Onychia with necrotic tissue wrapping nail, painful purulent discharge not healing.
Frankincense (Ru Xiang), Chalcanthite (Dan Fan) (equal parts).
Grind fine, apply frequently. Generally, removing the nail allows healing without medicine. For chronic non-healing sores, use this formula. Alternative: Burn both to ash, apply powder. Alternative: Burn alum to ash, apply to sore.
Oyster Shell Powder treats Onychia.
Use Oyster Shell Head (Mu Li Tou), grind to powder. Take 2 qian, mixed with Indigofera Tinctoria Flower wine. Three times daily.
Dark Plum Powder treats chronic Onychia not healing for years, with necrotic tissue, bloody/purulent pain.
Ten Dark Plums (Wu Mei), burn to ash, grind to powder. Apply to sore, change three times daily. Alternative: Burn salted plums to ash; mash and wrap.
[Dan] For Ingrown Nails, Depressed Nails, or Nail-cutting wounds not healing for years: Equal parts Phellodendron Bark (Huang Bo) and Aconite Tip (Wu Tou Jian), grind to powder. Clean and apply.
Hua Tuo’s Repeatedly Effective Formula for Ingrown Nails
Sandarac (Sha), Frankincense (Ru Xiang) (ground, each 1 qian), Calomelas (Ni Fen, half qian), Olive Pit (Gan Lan He, burned retaining nature, three pits), Yellow Lead Oxide (Huang Dan, one zi).
Grind to powder, mix with raw sesame oil. Wash with salt water, dry, apply. Effective after two applications.
Sugar Candy Formula treats Ingrown Nails.
Use amber sugar (hardened sugar balls), burn retaining nature, add Calomelas (Qing Fen) and Musk (She Xiang), mix with sesame oil, apply to ingrown nail. Rotting occurs within 1-2 days. Chen Zhongshan’s formula claims miraculous effect for regenerating healthy nails without damaging unaffected ones.
Ru Mo Powder treats Ingrown Nails.
Three pieces of Purple Horse Dung, wrapped in green cloth, roast on new tile over charcoal fire until carbonized, grind fine. Add 10 wen Myrrh (Mo Yao), 10 wen Calomelas (Qing Fen), slight Musk (She Xiang). Wash with scallion-pepper water, dry. Chew Licorice in sour water, spit onto sore, wash again, dry, apply. Dry sores: apply dry; moist sores: mix with raw oil. Initial application causes extreme pain for one night; root removed after three applications. A case lasted 25 years, failed all remedies, cured by one application.
Wu Bei Powder (Bai Yi Xuan Fang) treats Ingrown Nails.
Tigerhead Aconite (Cao Wu Tou, half liang), White Morning Glory Seed (Bai Qian Niu, 1 liang), Chinese Gall (Wu Bei Zi, 4 liang, whole), Fossilized Bones (Long Gu, 2.5 qian).
Crush first three, stir-fry together until Wu Bei Zi turns焦black. Discard others, keep Wu Bei Zi powder. For dry sores: mix with sesame oil; for moist sores: apply dry.
Huang Lian Powder (Bai Yi) treats Ingrown Nails.
Coptis Rhizome (Huang Lian), Shao Fen, Phellodendron Bark (Huang Bo), Soft Gypsum (Ruan Shi Gao, calcined) (equal parts).
Grind fine. Wash sore clean, dry with soft cloth. Mix with fresh water, apply, change every two days.
Fragrant Rouge Powder (Bai Yi, aka Musk Powder) treats Ingrown Nails invading flesh not healing.
Chinese Gall (Wu Bei Zi, burned black retaining nature), Dyed Rouge (Ran Yan Zhi) (equal parts), Musk (She Xiang, slight amount).
Grind fine, rub on. (Raw Wu Bei Zi is also acceptable.)
Xiong Chan Powder treats Ingrown Nails.
Realgar (Xiong Huang, transparent), Cicada Slough (Chan Tui, three, fried with butter, ground fine).
Mix evenly. Dry sores: apply dry; moist sores: mix with saliva, slight Calomelas (Qing Fen), apply.
Tuo Seng Powder treats Nail-cutting wounds invading flesh not healing.
White Alum (Bai Fan, purified), Monk Tuo Seng (Mi Tuo Seng) (equal parts).
Grind to powder, apply dry, bind with cloth. Also treats foot odor. Alternative: Use Nao Sha instead of Tuo Seng.
Huang Qi Formula treats Depressed Nails invading flesh with constant bloody pain.
Astragalus Root (Huang Qi), Angelica Sinensis (Dang Gui) (equal parts).
Grind to powder, apply to sore. If necrotic tissue exists, add slight Sulfur (Liu Huang) powder.
Zhu Che Wan treats Ingrown Nails with unbearable purulent pain.
Take Zhu Che Wan, rinse mouth/cleanse. Grind pill fine, apply. (Formula see Miscellaneous Diseases - Dysentery.)
Another Formula treats Ingrown Nails: Grind Frankincense (Ru Xiang) fine, rub on.
Another Formula for Nail Removal: Fold cotton wool gradually under nail, increase thickness to lift, then cut with scissors.
Treat Ingrown Nails: Use Crow-beak Chalcanthite (Ya Zui Dan Fan), grind to powder, rub on.
Frankincense Powder treats Ingrown Nails with unbearable pain affecting walking.
Purple Vine Fragrance (Zi Teng Xiang, half liang), Frankincense (Ru Xiang, half qian), Ancient Half-Liang Coin (Gu Ban Liang Qian, half qian), Calomelas (Qing Fen, slight), Musk (She Xiang Dang Men Zi, slight).
Grind fine, sieve through fine silk. Use small amount. Wash with Licorice soup, dry with old silk. Apply medicine, stuff with rush pith.
He Zi Powder treats Ingrown Nails with prolonged purulent discharge.
Chebula Fruit (He Zi, two), Dalbergia Odorifera Wood (Jiang Zhen Xiang), Indigo Naturalis (Qing Dai) (each 1 qian, ground), Chinese Gall (Wu Bei Zi, half liang).
Grind to powder, mix Qing Dai evenly. Wash with scallion-salt water, trim nail, apply dry powder to crevice, or mix with sesame oil.
Dan Fan Powder treats Ingrown Nails.
Chalcanthite (Dan Fan, 1 liang), Musk (She Xiang, one zi, grind two together fine).
Wash with scallion-salt water, dry, apply small amount.
Shen Ying Powder treats acute angle of big toe, nail invading flesh causing piercing sores, inability to wear shoes, wet/rotten toes, common in women.
Burn White Alum (Bai Fan) until liquid exhausted, take powder, place in sore. Eats necrotic tissue, generates good flesh. Carefully cut nail corners, heals in ten days. Add slight Realgar (Xiong Huang), grind together, sprinkle.