论曰紧唇之候，其本与唇疮同，疮未及瘥，热积在胃，复为风湿所搏，故令口唇发肿，
疮紧而痛，湿溃出黄水，久而不愈，谓之紧唇，脉经论足阳明之脉所生病，则曰唇紧者，盖
阳明胃之脉侠口环唇，风热所客，则为紧唇之病，方书谓紧唇，亦为沈唇。
治紧唇。顺脾养肌散方
山芋（一两） 人参（三两） 桂（去粗皮） 白芷 甘草（炙锉） 白术（各一两） 诃
黎勒皮
白茯苓（去黑皮） 黄 （锉） 木香（各半两） 肉豆蔻（两枚去皮）
上一十一味，捣罗为末，每服一钱匕，如茶点热服。
治紧唇。水银膏方
水银（研） 乳香（研各一两） 绿矾（研半两） 苦参（锉二两） 乱发（如鸡子大）
细辛（
去苗叶一两半）
上六味，各捣研为末，先以绯帛一片裹发，麻油一斤，蜡五两，先煎十余沸，次下苦参
细辛，以绯帛发消尽去滓，又以水银绿矾乳香，一处细研，投于膏中，搅令匀，慢火煎成膏
，每用少许，涂唇上，以瘥为度。
治紧唇。刺蓟汁方
刺蓟（一握）
上一味，捣汁日曝之令浓，先揩口唇，令血出，以药汁涂之，兼疗刺风甚验。
治紧唇。皂荚涂方
皂荚末
上一味，每以少许水调涂之。
治紧唇。大黄涂方
大黄（一分）
上一味，捣为末，每用少许，醋调涂。
治紧唇，牛膝灰敷方
牛膝（切一分）
上一味，烧灰细研为末，渗敷之。
治紧唇。猪脂涂方
腊月猪脂
上一味，每用少许涂之。
治紧唇。蛇皮灰涂方
蛇皮（烧灰）
上一味，研令细，生油调涂疮上。
治紧唇。案垢灰涂方
屠家肉案上垢
上一味，烧作灰涂之，日三两上瘥。
治紧唇。马齿苋涂方
马齿苋
上一味，捣汁涂之。
治紧唇色黑痒痛方
青铜钱（四文）
上一味，于磨石上，以腊月猪脂磨钱，泥和猪脂如膏，涂之验。
It is discussed that the manifestation of tight lips (Jin Chun) shares the same root cause as lip sores (Chun Chuang). If the lip sore has not yet healed, heat accumulates in the Stomach, and is further constrained by wind-dampness, causing swelling of the lips. The sores become tight and painful, weeping yellow fluid due to dampness, and fail to heal for a long time; this condition is called "tight lips." The *Mai Jing* (Pulse Classic), discussing diseases generated by the Foot-Yangming Meridian, states: "Tightness of the lips." This is because the Foot-Yangming Stomach Meridian runs alongside the mouth and encircles the lips; when wind-heat pathogens lodge there, it results in the disease of tight lips. Medical texts also refer to tight lips as "Shen Chun" (Deep/Sunken Lips).
Treatment for tight lips. Shun Pi Yang Ji San (Spleen-Soothing Muscle-Nourishing Powder) Formula
Dioscoreae Rhizoma (Shan Yu, 1 liang)
Ginseng Radix et Rhizoma (Ren Shen, 3 liang)
Cinnamomi Ramulus (Gui Zhi, remove coarse bark)
Angelicae Dahuricae Radix (Bai Zhi)
Glycyrrhizae Radix et Rhizoma (Zhi Gan Cao, roasted and crushed)
Atractylodis Macrocephalae Rhizoma (Bai Zhu, each 1 liang)
Terminalia Chebulae Pericarpium (He Li Le Pi)
Poria (Fu Ling, remove black skin)
Astragali Radix (Huang Qi, crushed)
Costi Rhizoma (Mu Xiang, each half liang)
Myristicae Semen (Rou Dou Kou, 2 seeds, remove shell)
The above eleven ingredients are pounded and sifted into powder. Take one qian bi (approx. 3-5g) per dose, and take orally with hot water like tea.
Treatment for tight lips. Shui Yin Gao (Mercury Ointment) Formula
Hydrargyrum (Shui Yin, ground)
Boswelliae Resina (Ru Xiang, ground, each 1 liang)
Vitriolum Viride (Lv Fan, ground, half liang)
Sophorae Flavescentis Radix (Ku Shen, crushed, 2 liang)
Capillus Humanus (Luan Fa, size of a chicken egg)
Asari Radix et Rhizoma (Xi Xin, remove seedlings and leaves, 1.5 liang)
The above six ingredients are each pounded and ground into powder. First, wrap the hair in a piece of red silk cloth. Take 1 jin of Sesame Oil (Ma You) and 5 liang of Beeswax (La), and boil until bubbling more than ten times. Then add Sophorae Flavescentis Radix (Ku Shen) and Asari Radix et Rhizoma (Xi Xin). Boil until the hair wrapped in silk dissolves completely, then filter out the dregs. Next, finely grind Hydrargyrum (Shui Yin), Vitriolum Viride (Lv Fan), and Boswelliae Resina (Ru Xiang) together, pour them into the ointment base, stir evenly, and simmer over slow fire until the ointment forms. Apply a small amount to the lips each time, until healed.
Treatment for tight lips. Ci Ji Zhi (Thorny Thistle Juice) Formula
Cirsii Japonici Herba (Ci Ji, one handful)
The above single ingredient is pounded to extract juice, then sun-dried until concentrated. First, wipe the lips until bleeding occurs, then apply the medicinal juice. It is also effective for treating "thorn wind" (a type of dermatological condition); the effect is very verified.
Treatment for tight lips. Zao Jia Tu (Soap Pod Application) Formula
Gleditsiae Sinensis Fructus Powder (Zao Jia Mo)
The above single ingredient: mix a small amount with water and apply.
Treatment for tight lips. Da Huang Tu (Rhubarb Application) Formula
Rhei Radix et Rhizoma (Da Huang, 1 fen)
The above single ingredient is pounded into powder. Take a small amount each time, mix with vinegar, and apply.
Treatment for tight lips. Niu Xi Hui Fu (Achyrathes Ash Poultice) Formula
Cyathulae Radix (Niu Xi, sliced, 1 fen)
The above single ingredient is burned to ash, finely ground into powder, and sprinkled on the affected area.
Treatment for tight lips. Zhu Zhi Tu (Pork Lard Application) Formula
Suill Fat (Zhu Zhi) prepared in the twelfth lunar month.
The above single ingredient: apply a small amount each time.
Treatment for tight lips. She Pi Hui Tu (Snake Skin Ash Application) Formula
Serpentis Cutis (She Pi, burned to ash)
The above single ingredient is ground finely, mixed with raw sesame oil, and applied to the sores.
Treatment for tight lips. An Gou Hui Tu (Butcher Block Grime Ash Application) Formula
Grime from butcher's meat blocks (An Gou)
The above single ingredient is burned to ash and applied. Apply three to five times daily until healed.
Treatment for tight lips. Ma Chi Xian Tu (Purslane Application) Formula
Portulacae Oleraceae Herba (Ma Chi Xian)
The above single ingredient is pounded to extract juice and applied.
Treatment for tight lips with dark color, itching, and pain. Qing Tong Qian (Bronze Coin) Formula
Bronze Coins (Qing Tong Qian, four coins)
The above single ingredient: on a whetstone, grind the coins using Suill Fat (Zhu Zhi) from the twelfth lunar month. Mix the resulting mud-like substance with pork lard to form a paste, and apply. The effect is verified.