柳花散（《正宗》）
黄柏（一两） 肉桂（一钱） 青黛（三钱） 冰片（二分）
研极细。每用少许吹之。
赴筵散（《正宗》）
黄连 黄柏 黄芩 北细辛 山栀子 干姜（各等分）
研细吹之。
口疮糜烂（《得效》） 生硫黄研末水调，涂手足心，效即洗去。
又方（《卫生》） 细辛末醋调贴脐上。
又方（《集简》） 铁锈末水调，敷患处。
又方（《简便》） 荸荠烧存性研末掺之。
又方（《普济》） 釜底墨研细搽。
又方（《肘后》） 黄葵花烧末敷之。
又方（《圣惠》） 葵根烧研敷效。
口破（《集验》）
滑石（一钱） 辰砂（三钱） 冰片（二分）
研末擦患处。
口烂喉肿舌干 马钱子一两麻油煎黑色。取起去毛研细，吹入喉中即凉，妙甚。
昔有人，年二十余岁，口臭如登厕。医者曰∶肺金本主腥，金为火所乘，火主臭
而然也。久则成腐，腐者肾也，亢极则反兼水化。其病在上宜涌之，如法果愈。（《锦囊》）
《医论选要》曰∶口臭者，乃脏腑臊腐之气，蕴积于胸臆之间而生热，冲发于口也。
窦汉卿曰∶病患瘥后口中臭，腹中绞痛者，皆因热毒积于脾家，急用苏子降气
汤服之。（《全书》）
冯鲁瞻曰∶盖齿属肾，肾气一虚则虚火壅于上焦，故乃口臭，名曰臭息。
Liuhua San (Clove Powder, from *Waike Zhengzong*)
*Phellodendri Cortex* (Huangbo, 1 liang), *Cinnamomi Ramulus* (Guizhi, 1 qian), *Indigo Naturalis* (Qingdai, 3 qian), *Borneolum Syntheticum* (Bingpian, 2 fen).
Grind into an extremely fine powder. Use a small amount to insufflate into the lesion each time.
Fuyan San (Banqueting Powder, from *Waike Zhengzong*)
*Rhizoma Coptidis* (Huanglian), *Phellodendri Cortex* (Huangbo), *Scutellariae Radix* (Huangqin), *Asari Radix et Rhizoma* (Beixixin), *Gardeniae Fructus* (Shanzhizi), *Zingiberis Rhizoma Recens* (Ganjiang) (equal parts).
Grind into a fine powder and insufflate into the lesion.
Mouth Ulcers with Erosion (from *Dexiao Fang*)
Raw *Sulfur* (Sheng Liuhuang) ground into powder, mixed with water, applied to the palms of hands and soles of feet. Wash off immediately upon efficacy.
Another prescription (from *Weisheng Fang*)
*Asari Radix et Rhizoma* (Xixin) ground into powder, mixed with vinegar, applied to the umbilicus.
Another prescription (from *Jijian Fang*)
Iron rust powder mixed with water, applied to the affected area.
Another prescription (from *Jianbian Danfang*)
*Eleocharis Tubers* (Biqi) carbonized (preserving internal properties), ground into powder, sprinkled on the lesion.
Another prescription (from *Puji Fang*)
Kiln bottom ash (Fudi Mo) ground finely and applied.
Another prescription (from *Zhouhou Beiji Fang*)
Yellow hibiscus flowers (*Abutilon indicum* or similar yellow mallow flowers) carbonized into powder and applied.
Another prescription (from *Taiping Shenghui Fang*)
Mallow roots (*Malvae Radix*) carbonized, ground into powder, and applied; effective.
Mouth Breaks/Ulcers (from *Jiyuan Fang*)
*Talcum* (Huashi, 1 qian), *Cinnabar* (Chensha, 3 qian), *Borneolum Syntheticum* (Bingpian, 2 fen).
Grind into powder and rub onto the affected area.
Mouth Rot, Throat Swelling, Dry Tongue
*Strychnos Nux-vomica* (Maqianzi, 1 liang) fried in sesame oil until black. Remove, clean off hairs, grind into fine powder, insufflate into the throat for immediate cooling sensation; excellent effect.
In the past, there was a person in his twenties whose breath was as foul as that of a toilet. The physician said: The Lung Metal naturally governs fishy odors; when Fire overacts on Metal, and since Fire governs foul odors, this results in halitosis. Over time, it becomes putrid; putrefaction relates to the Kidney. When hyperactive to the extreme, it reverses and assumes Water transformation. Since the disease is located in the upper jiao, emesis (Yong method) is appropriate. Following this method, he was indeed cured. (From *Jinnang*)
*Yilun Xuanyao* states: Halitosis arises from the musky and putrid qi of the zang-fu organs accumulating between the chest and diaphragm, generating heat, which rushes upward to the mouth.
Dou Hanqing stated: After a patient recovers from illness, if there is foul breath accompanied by abdominal colic, it is due to heat-toxin accumulating in the Spleen. One should urgently administer *Su Zi Jiang Qi Tang* (Perilla Fruit Decoction to Direct Qi Downward). (From *Quanshu*)
Feng Luzhan stated: Teeth belong to the Kidney. When Kidney Qi is deficient, deficient fire stagnates in the Upper Jiao, causing halitosis, termed "Chouxi" (Foul Breath).