旋耳疮生耳后缝，疮延上下连耳疼，状如刀裂因湿热，穿粉散搽即成功。
【注】此证生于耳后缝间，延及耳折，上下如刀裂之状，色红，时津黄水，由胆、脾
湿热所致。然此疮月盈则疮盛，月亏则疮衰，随月盈亏，是以又名月蚀疮也。宜穿粉散搽
之，即可成功。
\r旋耳疮图\p04-34a106.bmp\r
穿粉散
轻粉（研、隔纸微炒） 穿山甲（炙） 铅粉 黄丹（水飞过，各三钱）
共研极细，香油调敷。
【方歌】穿粉散敷旋耳疮，清热渗湿油调良，轻粉研细隔纸炒，穿山甲共铅粉黄。
大人口破分虚实，艳红为实淡红虚，实则满口烂斑肿，虚白不肿点微稀。
【注】此证名曰口疮，有虚火实火之分。虚火者，色淡红，满口白斑微点，甚者陷露龟纹，
脉虚不渴，此因思虑太过，多醒少睡，以致心肾不交，虚火上炎，宜服四物汤加黄柏、知母、
丹皮，少佐肉桂以为引导，从治之法也，外以柳花散搽之。实火者，色艳红，满口烂斑，甚者
腮舌俱肿，脉实口干，此因过食膏粱浓味，醇酒炙爆，以致心、脾实火妄动，宜服凉膈散，外
搽赴筵散，吐涎则效。如口疮舌干黄硬作渴者，宜服加减八味丸，以滋化源，俱禁水漱。
柳花散
黄柏（末，一两） 青黛（三钱） 肉桂（一钱） 龙脑香（即冰片，二分）
各研细，再合一处研匀，每用少许，搽于患处。
【方歌】柳花散治白口疮，黄柏青黛龙脑香，肉桂共研搽患处，虚火上炎自平康。
赴筵散
黄芩 黄连 栀子（生） 干姜 黄柏（末） 细辛（各等分）
共研细末，每用少许，搽于患处。
【方歌】赴筵散医实火攻，口疮斑烂色多红，芩连栀子干姜柏，细辛同研有神功。
凉膈散（见面部面发毒）
加减八味丸（见溃疡门）
Xuer Chuang (Eczema behind the ear) arises in the crease behind the ear, spreading up and down to cause ear pain. Its appearance resembles a knife cut caused by damp-heat; applying Chuanfen San (Powder of Lead Oxide and Calomel) will lead to success.
[Note] This condition occurs between the creases behind the ear, extending to the folds of the auricle, presenting with a knife-cut-like appearance up and down. The color is red, and yellow fluid oozes intermittently. It is caused by damp-heat in the Gallbladder and Spleen channels. However, this sore fluctuates with the moon's phases: it flourishes when the moon is full and wanes when the moon is deficient. Hence, it is also known as Yueshi Chuang (Moon-eating Sore). Applying Chuanfen San externally is effective.
Chuanfen San (Powder of Lead Oxide and Calomel)
Qingfen (Calomel, ground and lightly stir-fried through paper) Chanshanjia (Pangolin Scales, prepared) Qianfen (Lead Oxide) Huangdan (Litharge, water-washed), each 3 qian.
Grind all into an extremely fine powder, mix with sesame oil, and apply topically.
[Fang Ge] Chuanfen San applied for Xuer Chuang clears heat and leaches out dampness, mixed with oil is excellent; Qingfen is ground fine and fried through paper, combined with Chanshanjia, Qianfen, and Huangdan.
Mouth ulcers in adults are differentiated into deficiency and excess patterns. A bright red color indicates excess, while a pale red color indicates deficiency. In excess patterns, there are widespread ulcerated spots and swelling throughout the mouth; in deficiency patterns, the lesions are white, non-swollen, with sparse spots.
[Note] This condition is named Kou Chuang (Mouth Ulcer), divided into deficiency fire and excess fire. Deficiency fire presents with a pale red color, sparse white spots throughout the mouth, and in severe cases, sunken cracks resembling turtle shells. The pulse is deficient, and there is no thirst. This results from excessive mental exertion, leading to frequent waking and little sleep, causing a failure of communication between the Heart and Kidney, with deficiency fire flaming upward. It is appropriate to administer Siwu Tang (Four Substances Decoction) added with Huangbai (Phellodendri Cortex), Zhimu (Anemarrhenae Rhizoma), and Danpi (Moutan Cortex), with a small amount of Rougui (Cinnamon Bark) as a guiding agent, following the method of treating according to the nature of the disease. Externally, Liuhua San (Willow Flower Powder) should be applied. Excess fire presents with a bright red color, widespread ulcerated spots throughout the mouth, and in severe cases, swelling of the cheeks and tongue. The pulse is excess, and there is dry mouth. This results from overconsumption of rich, greasy foods, strong wine, and roasted or fried items, causing wild movement of excess fire in the Heart and Spleen. It is appropriate to administer Liangge San (Cooling the Diaphragm Powder) and apply Fuyan San (Banquet Attending Powder) externally; efficacy is seen when saliva is expectorated. If mouth ulcers are accompanied by a dry tongue, yellow and hard coating, and thirst, Jiajian Bawei Wan (Modified Eight-Ingredient Pill) should be administered to nourish the source of transformation. Rinsing the mouth with water is prohibited in all cases.
Liuhua San (Willow Flower Powder)
Huangbai (Phellodendri Cortex, powder, 1 liang) Qingdai (Indigo Naturalis, 3 qian) Rougui (Cinnamon Bark, 1 qian) Longnaoxiang (Borneol, 2 fen).
Grind each finely, then mix thoroughly. Apply a small amount to the affected area each time.
[Fang Ge] Liuhua San treats white mouth ulcers; Huangbai, Qingdai, and Longnaoxiang are used. Ground together with Rougui and applied to the lesion, deficiency fire flaming upward calms naturally.
Fuyan San (Banquet Attending Powder)
Huangqin (Scutellariae Radix) Huanglian (Coptidis Rhizoma) Zhizi (Gardeniae Fructus, raw) Ganjiang (Zingiberis Rhizoma) Huangbai (Phellodendri Cortex, powder) Xixin (Asari Radix et Rhizoma), equal parts.
Grind into a fine powder. Apply a small amount to the affected area each time.
[Fang Ge] Fuyan San attacks excess fire; mouth ulcer spots are mostly red. Huangqin, Huanglian, Zhizi, Ganjiang, Huangbai, and Xixin ground together work miraculously.
Liangge San (Cooling the Diaphragm Powder) (See section on Facial Furuncles)
Jiajian Bawei Wan (Modified Eight-Ingredient Pill) (See section on Ulcers)