锁口枭毒伏脾经，或单或双绕唇生，外用针刺燕脂法，内服泻黄散即宁。
【注】一嘴角有痘一粒，较诸痘独大，板硬无盘，名曰单锁口。两嘴角各有一粒，名
曰双锁口。又口之上下四旁，连串环绕者，亦名锁口。此毒拥于脾也。初出急以银针挑破，
外以燕脂膏贴之，内服泻黄散，使痘转红活，庶可望生。
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燕脂膏（方见蒙 证治）
泻黄散
犀角 黄连 生地 青皮 木通 石膏 丹皮 荆芥穗 牛蒡子（炒、研） 大黄 红花 紫花地丁
引加灯心，水煎服。
【方歌】锁口泻黄散最灵，犀连生地青木通，石膏丹皮荆牛蒡，大黄红花合地丁。
锁唇痘聚口唇内，肿裂干黄板硬实，泻黄散内合猪尾，燕脂贴法莫少迟。
【注】痘出攒聚于唇内者，名曰锁唇。轻则焦裂肿痛，重则板硬干黄，此毒火发于脾
脏也。急以泻黄散合猪尾膏服之，外用燕脂贴法。若见黑色，则血凝毒锢，终无救矣。
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泻黄散（方见锁口证治）
猪尾膏
取小雄猪尾尖血十数滴，和梅花冰片少许，即调于煎剂内服。
燕脂膏（方见蒙 证治）
托腮腮边痘成攒，气为毒阻起发难，急用黄连解毒治，板硬紫黯归宗先。
【注】满面俱稀，独两腮之痘攒聚成片者，名曰托腮。乃正气为毒所阻，难以起发也。当
见点之初，毒势未成，即以黄连解毒汤解之。如板硬紫黯，以归宗汤攻之。
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黄连解毒汤（方见结痂落痂证治）
归宗汤（方见发热证治）
Suokou (Locking Mouth) Xian Du (Fierce Toxin) resides in the Spleen Meridian, appearing singly or in pairs around the lips. External treatment involves needle pricking and applying Yanzhi Ointment; internal administration of Xiehuang San brings peace.
[Note] A single pock at one corner of the mouth, larger than others, hard and without a base, is called "Single Suokou". One pock at each corner of the mouth is called "Double Suokou". Additionally, those encircling the upper, lower, left, and right sides of the mouth in a continuous chain are also named Suokou. This toxin obstructs the Spleen. Upon initial eruption, urgently prick it open with a silver needle, apply Yanzhi Ointment externally, and administer Xiehuang San internally to transform the pocks into ruddy and vibrant ones, thereby offering hope for survival.
Yanzhi Ointment (Formula see Meng Zheng Zhi)
Xiehuang San (Spleen-Draining Powder)
Ingredients: Rhinoceros Horn (Xi Jiao), Coptis Rhizome (Huang Lian), Rehmannia Root (Sheng Di), Green Citrus Peel (Qing Pi), Akebia Stem (Mu Tong), Gypsum Fibrosum (Shi Gao), Moutan Bark (Dan Pi), Schizonepeta Spike (Jing Jie Sui), Burdock Fruit (Niu Bang Zi, stir-fried and ground), Rhubarb (Da Huang), Safflower (Hong Hua), Viola Yedoensis (Zi Hua Di Ding).
Add Juncus Effusus (Deng Xin Cao) as a guide drug, decoct in water and take orally.
[Formula Verse] Xiehuang San for Suokou is most effective, containing Xi Jiao, Huang Lian, Sheng Di, Qing Pi, Mu Tong; Shi Gao, Dan Pi, Jing Jie, Niu Bang Zi; Da Huang, Hong Hua combined with Di Ding.
Suochun (Locking Lips) Pocks gather inside the lips, swelling, cracking, drying yellow, hard and solid. Combine Xiehuang San with Zhuwei Gao, and do not delay applying Yanzhi Ointment.
[Note] Pocks gathering inside the lips are named Suochun. Mild cases present with scorching cracks, swelling, and pain; severe cases present with board-like hardness, dryness, and yellowing. This is due to Toxic Fire erupting from the Spleen Organ. Urgently administer Xiehuang San combined with Zhuwei Gao, and use Yanzhi Ointment externally. If black color appears, blood coagulates and toxin is imprisoned, ultimately incurable.
Xiehuang San (Formula see Suokou Zheng Zhi)
Zhuwei Gao (Pig Tail Paste)
Take ten to several drops of blood from the tip of a young male pig's tail, mix with a small amount of Plum Blossom Borneol (Meihua Bingpian), and immediately blend into the decoction for oral administration.
Yanzhi Ointment (Formula see Meng Zheng Zhi)
Tuosai (Supporting Cheeks) Pocks on the cheeks gather in clusters, Qi is obstructed by toxin, making eruption difficult. Urgently use Huanglian Jiedu Tang for treatment; if hard and purple-dark, Guizong Tang should be used first.
[Note] When the face has sparse pocks but those on both cheeks gather into patches, it is named Tuosai. This occurs when Righteous Qi is obstructed by toxin, making eruption difficult. At the initial stage when spots appear and toxic momentum has not yet formed, resolve it with Huanglian Jiedu Tang. If hard and purple-dark, attack it with Guizong Tang.
Huanglian Jiedu Tang (Coptis Decoction for Resolving Toxins) (Formula see Jie Jia Luo Jia Zheng Zhi)
Guizong Tang (Return to Ancestral Formula) (Formula see Fa Re Zheng Zhi)