【方歌】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。
方剂：穿粉散
组成：轻粉（研，隔纸微炒） 穿山甲（炙）
铅粉 黄丹（水飞过，各三钱）
共研极细末，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。
【方歌】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，此因过食膏梁厚味，醇酒炙膊，以致
心、脾实火妄动，宜服凉膈散，外搽赴筵散，吐唌则效
。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。
方剂：柳花散
组成：黄柏（末，一两） 青黛（三钱）
肉桂（一钱） 龙脑香（即冰片，各二钱）
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。
又方：赴筵散
组成：黄芩 黄连
栀子（生） 干姜
黄柏（末） 细辛
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。
又方：凉膈散（见面部面发毒）
加减八味汤（见溃疡门）
【方歌】旋耳疮生于耳后缝隙，疮势蔓延上下并牵连耳朵疼痛，形态如同刀割裂口，这是由于湿热引起，使用穿粉散外搽即可见效。
【注】此病证生于耳后缝隙之间，蔓延至耳廓折痕处，上下呈现如刀割裂开的形状，颜色发红，时常渗出黄色水液，这是由胆经和脾经的湿热所致。然而这种疮疡随着月亮的盈亏而变化，月亮圆满时疮势加重，月亮亏缺时疮势减轻，随月相盈亏变化，因此又被称为月蚀疮。适宜用穿粉散外搽治疗，即可取得疗效。
方剂：穿粉散
组成：轻粉（研磨，隔纸微炒） 穿山甲（炙烤） 铅粉 黄丹（用水飞法处理，各三钱）
共同研磨成极细粉末，用香油调和后敷于患处。
【方歌】穿粉散敷治旋耳疮，清热渗湿用油调良，轻粉研磨细隔纸炒，穿山甲与铅粉黄丹同用。
【方歌】大人口疮分为虚证和实证，颜色艳红为实证，颜色淡红为虚证，实证表现为满口溃烂斑点且肿胀，虚证表现为白色且不肿、斑点轻微稀疏。
【注】此病证名为口疮，有虚火和实火之分。虚火者，颜色淡红，满口出现白斑微点，严重的甚至凹陷露出龟裂纹路，脉象虚弱且不口渴，这是因为思虑过度，多醒少睡，导致心肾不交，虚火上炎，适宜服用四物汤加黄柏、知母、丹皮，少量佐以肉桂作为引导，这是从治的方法，外用柳花散搽涂。实火者颜色艳红，满口溃烂斑点，严重的腮部和舌头都肿胀，脉象实而口干，这是因为过食肥甘厚味、醇酒炙烤食物，导致心、脾实火妄动，适宜服用凉膈散，外搽赴筵散，吐出唾液则见效。如果口疮伴舌干、苔黄硬且口渴者，适宜服用加减八味丸，以滋养化源，均禁止用水漱口。
方剂：柳花散
组成：黄柏（研末，一两） 青黛（三钱） 肉桂（一钱） 龙脑香（即冰片，各二钱）
分别研磨细，再合在一起研磨均匀，每次取少许，搽于患处。
【方歌】柳花散治疗白色口疮，黄柏青黛龙脑香，肉桂共同研磨搽患处，虚火上炎自然平复安康。
又一方：赴筵散
组成：黄芩 黄连 栀子（生用） 干姜 黄柏（研末） 细辛
共同研磨成细末，每次取少许，搽于患处。
【方歌】赴筵散医治实火攻，口疮斑烂颜色多红，芩连栀子干姜柏，细辛同研有神功。
又一方：凉膈散（见面部面发毒章节）
加减八味汤（见溃疡门章节）
[Formula Song] Xuer Chuang (Otitis Externa / Auricular Eczema) arises in the crease behind the ear, spreading up and down causing ear pain; its appearance resembles a knife-cut fissure caused by Damp-Heat. Applying Chuanfen San (Cave Earth Powder) will bring success.
[Note] This condition arises between the creases behind the ear, extending to the folds of the auricle, presenting a shape like a knife-cut fissure. The color is red, often exuding yellow fluid, caused by Damp-Heat in the Gallbladder and Spleen meridians. However, this sore fluctuates with the moon's phases: it worsens when the moon is full and improves when the moon wanes, hence it is also called Yueshi Chuang (Moon-bitten Sore). It is suitable to apply Chuanfen San externally for effective treatment.
Formula: Chuanfen San (Cave Earth Powder)
Composition: Qingfen (Calomel, ground, lightly stir-fried through paper), Chanshanjia (Pangolin Scales, roasted), Qianfen (Lead Carbonate), Huangdan (Litharge, processed by water levigation), each 3 qian.
Grind all into an extremely fine powder, mix with Sesame Oil, and apply to the affected area.
[Formula Song] Chuanfen San applied for Xuer Chuang clears Heat and leaches out Dampness, mixed with oil is excellent; Qingfen is ground fine and stir-fried through paper, combined with Chanshanjia, Qianfen, and Huangdan.
[Formula Song] Kou Chuang (Oral Ulcers) in adults are differentiated into Deficiency and Excess patterns: bright red indicates Excess, pale red indicates Deficiency. In Excess patterns, there are widespread ulcerated spots and swelling; in Deficiency patterns, the lesions are white, non-swollen, with sparse, slight spots.
[Note] This condition is named Kou Chuang (Oral Ulcers), divided into Deficient Fire and Excess Fire. Deficient Fire presents as pale red color, with white spots scattered across the mouth; severe cases show depressed,龟-like cracks, a deficient pulse, and no thirst. This results from excessive mental exertion, frequent waking with little sleep, leading to a failure of communication between the Heart and Kidney, with Deficient Fire flaming upward. It is suitable to take Siwu Tang (Four Substances Decoction) added with Huangbai (Phellodendron Bark), Zhimu (Anemarrhena Rhizome), and Danpi (Moutan Cortex), with a small amount of Rougui (Cinnamon Bark) as a guiding agent, which is a method of treating according to the nature of the disease. Externally, Liuhua San (Willow Flower Powder) can be applied. Excess Fire presents as bright red color, with widespread ulcerated spots; severe cases involve swelling of the cheeks and tongue, a solid pulse, and dry mouth. This results from overconsumption of rich, greasy foods, strong wine, and roasted meats, causing Excess Fire in the Heart and Spleen to move recklessly. It is suitable to take Liangge San (Cool the Diaphragm Powder) and apply Fuyan San (Banquet Attending Powder) externally; relief comes after spitting saliva. If oral ulcers are accompanied by a dry tongue, yellow hard coating, and thirst, Jiajian Bawei Wan (Modified Eight-Ingredient Pill) should be taken to nourish the source of transformation; rinsing the mouth with water is prohibited in all cases.
Formula: Liuhua San (Willow Flower Powder)
Composition: Huangbai (Phellodendron Bark, powdered, 1 liang), Qingdai (Indigo Naturalis, 3 qian), Rougui (Cinnamon Bark, 1 qian), Longnaoxiang (Borneol, 2 qian).
Grind each finely, then mix together thoroughly. Use a small amount each time and apply to the affected area.
[Formula Song] Liuhua San treats white Kou Chuang, composed of Huangbai, Qingdai, and Longnaoxiang; Rougui is ground together and applied to the site, calming the flaming-up of Deficient Fire naturally.
Another Formula: Fuyan San (Banquet Attending Powder)
Composition: Huangqin (Scutellaria Root), Huanglian (Coptis Rhizome), Zhizi (Gardenia Fruit, raw), Ganjiang (Dried Ginger), Huangbai (Phellodendron Bark, powdered), Xixin (Asarum).
Grind all into a fine powder. Use a small amount each time and apply to the affected area.
[Formula Song] Fuyan San attacks Excess Fire in oral ulcers, where spots are often bright red; Huangqin, Huanglian, Zhizi, Ganjiang, Huangbai, and Xixin ground together work miraculously.
Another Formula: Liangge San (Cool the Diaphragm Powder) (see section on Facial Furuncles)
Jiaban Bawei Tang (Modified Eight-Ingredient Decoction) (see section on Ulcers)