治风湿入脾，致唇口 动，唇揭，头疼目眩；及四肢浮肿，如风水状。
羌活（三两） 茯苓 薏苡仁（各一两）
上为末。每服二钱，水一大盏，煎七分，入淡竹沥一匙许，再煎服。
治脾肺气虚，忧思过度，荣卫枯耗，唇裂沉紧；或口吻生疮，容色枯悴
，男子失精，女子血衰，悉主之。
甘菊花 枸杞子 肉苁蓉(酒浸，洗切) 巴戟(去心，各等分)
上为末，蜜丸，梧子大。每服三五十丸，米汤下。
治唇紧燥裂生疮，面无颜色。
青布(烧灰)
上研细，以猪脂调，夜敷睡。一法，以头垢敷之。
凡沉唇紧唇、唇上生疮、唇裂，并以甲煎敷之，弥效。
夫口，乃一身之都门，出入荣养之要道，节宣微爽，病必生焉。故热则苦，寒则咸，宿
食则酸，烦躁则涩，虚则淡，疸则甘。五味入口，藏于胃脾，行其精华，分布津液于五脏，
脏气偏胜，味必偏应于口，或劳郁则口臭，凝滞则生疮，不可失睡，失睡则愈增。
治上鬲壅毒，口舌生疮，咽嗌肿痛。以少许掺患处，咽津。
寒水石( ，三两） 辰砂（二钱半，别研) 生脑子（半字）
上为末。日夜数次用。小儿疮疹攻口，先以五福化毒丹扫，却用此药掺立效。
治口疮疼痛。
五倍子（一两，洗) 黄柏(蜜涂炙紫色) 滑石（各半两）
上研细末。每服半钱许，掺患处，咽津不妨，便可饮食。
Treats wind-dampness invading the Spleen, causing twitching of the lips and mouth corners, peeling of the lips, headache, and dizziness; as well as edema of the four limbs, resembling Fengshui (a type of edema characterized by facial swelling).
Qianghuo (Radix Notopterygii) [3 liang], Fuling (Poria), Yiyiren (Semen Coicis) [each 1 liang].
Grind the above into powder. Take 2 qian per dose, decoct with one large cup of water until reduced to 70%, add one spoonful of Danzhuli (Bamboo Sap), decoct again, and take.
Treats deficiency of Qi in the Spleen and Lung, excessive worry and overthinking, leading to exhaustion of Ying and Wei (Nutritive and Defensive Qi), resulting in cracked and tight lips; or sores at the corners of the mouth, withered and haggard complexion; seminal emission in men, and blood deficiency in women. This formula treats all these conditions.
Ganjuhua (Flos Chrysanthemi Indici), Gouqizi (Fructus Lycii), Rongcongrong (Caulis Cistanches) [soaked in wine, washed and sliced], Bajitian (Radix Morinda Officinalis) [remove heart, equal parts].
Grind the above into powder, make pills with honey, sized like wu zi (seeds of a Chinese quince). Take 30-50 pills per dose, swallow with rice soup.
Treats tight, dry, cracked lips with sores, and lackluster complexion.
Qingbu (Blue Cloth) [burned to ash].
Grind the ash finely, mix with Zhizhi (Porcine Fat), apply at night before sleep. Another method: apply Tougu (Hair Knot Dregs).
For tight lips, sores on the lips, and lip cracking, apply Jiajian (a topical preparation) for excellent efficacy.
The mouth is the main gate of the body and the crucial pathway for the entry and exit of Ying and Wei nourishment. If its regulation is slightly impaired, disease will inevitably arise. Thus, heat causes bitterness, cold causes saltiness, retained food causes sourness, irritability causes astringency, deficiency causes blandness, and jaundice causes sweetness. The five flavors enter the mouth, are stored in the Stomach and Spleen, their essence is transported, and fluids are distributed to the Zang organs. If the Qi of an organ is excessive, the taste will correspondingly be biased. Alternatively, labor and stagnation may cause bad breath, and stagnation may cause sores. Sleep must not be lost; loss of sleep will exacerbate the condition.
Treats toxicity obstructing the upper jiao and diaphragm, sores in the mouth and tongue, and swelling and pain in the throat. Apply a small amount to the affected area and swallow the saliva.
Hanshuishi (Gypsum Fibrosum) [calcined, 3 liang], Chen sha (Cinnabaris) [2.5 qian, separately ground], Sheng naozi (Borneolum Syntheticum) [half zi].
Grind the above into powder. Use several times day and night. For children's variola (smallpox/chickenpox) attacking the mouth, first sweep with Wufu Huadu Dan, then apply this powder for immediate effect.
Treats painful mouth ulcers.
Wubeizi (Galla Chinensis) [1 liang, washed], Huangbai (Cortex Phellodendri) [coated with honey and stir-fried until purple], Huashi (Talcum) [each half liang].
Grind the above into fine powder. Take about half a qian per dose, sprinkle on the affected area. Swallowing saliva is acceptable, and eating can proceed immediately.