论曰五脏皆有虫，虫得风则化，肺开窍于鼻，肺经既虚，风热乘之，鼻气壅塞，不得宣
通，则疳虫因得侵蚀，疮生鼻间。
治鼻疳疮，侵蚀鼻柱，乌香散方
草乌头（烧灰） 麝香（研等分）
上二味同研细，以少许贴疮上。
治鼻中疳疮有虫，矾石汤方
矾石（烧令汁枯研） 苦参（各一两） 生地黄（三两）
上三味锉二味如麻豆大，与矾石拌匀，以水八合，煎取三合，新绵滤过，瓷器收盛，时
点鼻内。
治疳虫蚀鼻生疮方
铜箸（一只）
上烧赤投醋中，以醋少少涂之。
治疳热，虫蚀鼻生疮，黄柏汤方
黄柏（去粗皮二两）
上一味细锉，以新水浸二日，绞取浓汁一盏，煎一沸温服。
治鼻中疳疮，杏仁膏
杏仁（去皮尖不拘多少）
上一味研如膏，以乳汁和，涂疮上。
治鼻中疳疮方
乌牛耳中垢
上一味，取少许敷疮上。
治鼻中疳疮方
牛鼻津
上一味，取涂疮上。
治疳虫蚀人口鼻，椿根汤方
椿根（切一升去皮） 盐（半合） 葱白（切半升） 豉（半升） 椒（去目及闭口者
炒出汗一
合）
上五味，合和，以醋及清泔各三升，煎十数沸，去滓约及一升，分作三服，有恶物下即
效，小儿量大小加减。
治疳虫蚀人口鼻唇颊，作疮穿透者，洗疮银屑方
银屑（十两）
上以水三升，煎取一升，一日三四度洗疮，仍于铜器中煎用。
治疳虫蚀鼻生疮，及鼻下赤烂，如圣散方
胡粉（半两） 麝香（研一字） 甜瓜蒂（七枚为末入粉内同研）
上三味，再同研匀，用蟾酥少许，水浸一宿，次日取蟾水，先和胡粉，次同和丸，如绿
豆大，每用二丸，水化敷疮上，鼻下赤烂者，涂赤烂处，小儿每用一丸。
治疳虫蚀鼻生疮，及鼻涕淹溃，青金散方
铜青 白矾（生研等分）
上二味，同研为散，每用少许，敷疮上，小儿亦可用。
It is stated that there are parasites in all five zang organs; these parasites transform when exposed to wind. The lung opens into the nose (the nose serves as the external orifice of the lung). If the Lung Meridian is deficient, wind-heat pathogens take advantage to invade, causing congestion and obstruction of nasal qi, preventing its free circulation. Consequently, gan parasites (parasites associated with malnutrition/gan syndrome) can erode the tissue, leading to sores in the nose.
Wu Xiang San (Black Aconite Musk Powder) for treating nasal gan sores that erode the nasal bridge:
Aconiti Lateralis Radix Preparata (Caowutou, burnt to ash) and Moschus (Shexiang, ground; equal parts of both).
Grind the above two ingredients together into a fine powder. Apply a small amount directly to the sore.
Fanshi Tang (Alum Decoction) for treating nasal gan sores with parasites:
Alumen (Fanshi, burnt until liquid evaporates then ground), Sophorae Flavescentis Radix (Kushen, one tael each), and Rehmanniae Radix Recens (Shengdihuang, three taels).
Chop Kushen and Shengdihuang into pieces the size of hemp seeds, mix evenly with Fanshi. Add eight he of water, decoct to obtain three he of liquid. Filter through fresh cotton wool, store in a porcelain vessel, and instill drops into the nose occasionally.
Formula for treating gan parasites eroding the nose and causing sores:
Copper chopsticks (one piece).
Heat the copper chopsticks until red-hot, quench them in vinegar, and apply a small amount of this vinegar solution to the affected area.
Huangbai Tang (Phellodendron Decoction) for treating gan heat and parasites eroding the nose causing sores:
Phellodendri Cortex (Huangbai, coarse bark removed, two taels).
Finely chop this single ingredient, soak in fresh water for two days, wring out to obtain one cup of concentrated juice, boil once, and take warm.
Xingren Gao (Apricot Kernel Ointment) for treating nasal gan sores:
Armeniacae Semen (Xingren, skin and tip removed, quantity as needed).
Grind this single ingredient into an ointment, mix with milk, and apply to the sores.
Formula for treating nasal gan sores:
Dirt from the ear of a black ox (Wuniu erzho ngou).
Take a small amount of this dirt and apply it to the sores.
Formula for treating nasal gan sores:
Saliva from the nose of a cow (Niubi jin).
Apply this substance to the sores.
Chungen Tang (Toona Root Decoction) for treating gan parasites eroding the mouth and nose:
Toonae Radicis Cortex (Chungen, sliced one sheng, peeled), Sal (Yan, half he), Allii Cepae Albi (Congbai, sliced half sheng), Glycines Sojae Fructus Fermentatus (Chi, half sheng), Zanthoxyli Fructus (Jiao, remove eyes and closed ones, stir-fry until sweat appears, one he).
Mix the above five ingredients. Add three sheng of vinegar and three sheng of clear rice-washing water. Decoct for more than ten boils, strain, and retain approximately one sheng of liquid. Divide into three doses. Efficacy is indicated by the discharge of foul matter. Adjust dosage for children according to age and size.
Xichuang Yinxie Fang (Silver Scale Wash) for treating gan parasites eroding the mouth, nose, lips, cheeks, causing penetrating sores:
Yinxie (Yinxie, ten taels).
Decoct in three sheng of water to obtain one sheng of liquid. Wash the sores three to four times a day. Must be decocted in a copper vessel.
Rusheng San (Like-Sage Powder) for treating gan parasites eroding the nose causing sores, and redness/ulceration below the nose:
Hu Fen (Hufen, half liang), Moschus (Shexiang, ground to the weight of "yi zi"), Cucumis Melonis Fructus (Tian Guadi, seven fruits, ground to powder and mixed with Hufen).
Grind the above three ingredients thoroughly together. Take a small amount of Bufo Venenum (Chansu), soak in water overnight. On the next day, use the Chansu water to first dissolve Hufen, then mix to form pills the size of green mung beans. Use two pills per dose for adults, dissolve in water, and apply to the sores. For redness/ulceration below the nose, apply to the ulcerated area. Children use one pill per dose.
Qingjin San (Blue Gold Powder) for treating gan parasites eroding the nose causing sores, and weeping ulcers due to nasal discharge:
Cu Qing (Tongqing, i.e., Verdigris), Bai Fan (Baifan, raw ground, equal parts).
Grind the above two ingredients together into a powder. Apply a small amount to the sores. This may also be used for children.