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(Attached Discussion)
Sores on the tongue are caused by heat accumulation in the Heart and Spleen meridians. The mouth belongs to the Heart; the Heart corresponds to Fire, and the Spleen to Earth. Heat accumulated from Fire is transmitted to the Earth of the Spleen, causing both organs to accumulate...

Formulas:
Shengma Decoction (from *Qianjin Fang*): The tongue corresponds to the Heart; heat manifests as sores on the tongue, with cracking that pulls the lips upward and reddens them. Taking this formula drains heat.
* Shengma (Rhizoma Cimicifugae), Shegan (Radix Belamcandae) (each 3 liang);
* Baiye (Cacumen Platycladi) (1 sheng, cut);
* Daqing (Radix Isatidis) (2 liang);
* Ku Zhuye (Folium Bambusae) (cut);
* Dihuang (Radix Rehmanniae) (juice, each 5 he);
* Chi Mi (Red Honey).
Boil in 4 sheng of water until 1 sheng remains. Strain the dregs, add Xuan Shen juice (Radix Scrophulariae), boil once; then add Dihuang juice, boil twice; finally add honey, simmer until 1.7 sheng remains. Wrap the residue in silk cloth to extract the juice, and hold it against the tongue.

Shengma Chaihu Tang (Cinnamon Twig and Bupleurum Decoction) (from *Wei Shi Fang*):
Treats deficiency-heat of the Heart and Spleen attacking upwards, causing sores on the tongue, stiffness of the tongue, and swelling and pain on both sides of the cheeks.
* Chaihu (Radix Bupleuri), Shengma (Rhizoma Cimicifugae), Shaoyao (Radix Paeoniae Lactiflorae), Zhizi Ren (Semen Gardeniae), Mutong (Caulis Akebiae) (each 1 liang);
* Huangqin (Radix Scutellariae), Daqing (Radix Isatidis);
* Xingren (Semen Armeniacae Amarum) (skin and tip removed, each 3 fen);
* Shigao (Gypsum Fibrosum)...

Xuan Shen Shengma Tang (Scrophularia and Cimicifuga Decoction) (from *Ji Sheng Fang*):
Treats congestive heat of the Heart and Spleen, sores on the tongue, "wooden tongue" (swelling and stiffness of the tongue resembling wood), or swelling and pain extending to the cheeks and neck.
* Xuan Shen (Radix Scrophulariae), Chi Shaoyao (Radix Paeoniae Rubra), Shengma (Rhizoma Cimicifugae), Xijiao (Cornu Rhinocerotis - *Note: Substitute with Rhinoceros Horn alternative in modern practice*), Jiegeng (Radix Platycodonis), Guanzhong (Rhizoma Dryopteris Crassirhizomatis), Huangqin (Radix Scutellariae), Gancao (Radix Glycyrrhizae) (equal parts). Coarsely crush the herbs. Take 4 qian per dose.

Qiandan Ointment:
Treats sores on the tongue.
* Sheng Dihuang Zhi (Juice of Fresh Radix Rehmanniae) (3 he);
* Mi (Honey) (3 he);
* Qiandan (Lapis Plumbi Subacetatus) (1.5 liang);
* Xingren (Semen Armeniacae Amarum) (skin and tip removed, double-kernel, ground separately into flour-like consistency, 70 kernels).
Mix together. Spit out saliva and apply.

Wuhuang San (Black-Yellow Powder) (from *Ren Zhi Zhi Zhi Fang*):
Treats sudden swelling and sores of the tongue.
Use Wuzhe Yu Gu (Os Sepiae) and Puhuang (Pollen Typhae) in equal parts. Grind into powder and apply to the tongue for good effect.

(Attached Discussion)
Etiology: The Foot-Taiyin Spleen Meridian connects with the mouth. The Foot-Yangming Stomach Meridian and Hand-Yangming Large Intestine Meridian run alongside...肥疮 (fatty sores), also known as Yan Kou Chuang (Swallow-Mouth Sores).
Kou Wen Chuang (Mouth and Corner Sores) refers to sores appearing between the lips and corners of the mouth, characterized by pain and slight swelling. This is caused by heat in the Spleen and Stomach, which follows the qi mechanism to steam and diffuse upwards, attacking the lips and combining with body fluids.
Dryness and scorching of the lips and tongue, with oral ulcers, are caused by heat in the Heart and Spleen. Soak Huanglian (Radix Coptidis) in water, warm it, and drink it, or use Huanglian Ejiao Wan (Coptis and Donkey-Hide Gelatin Pills).

Formulas:
Xiong Xin Wan (Ligusticum and Asarum Pills) (from *Qianjin Fang*):
Treats mouth sores.
* Zhizi (Fructus Gardeniae), Gancao (Radix Glycyrrhizae) (each 18 zhu);
* Xixin (Herba Asari) (20 zhu);
* Xiong (Rhizoma Chuanxiong) (1 liang);
* Guixin (Cortex Cinnamomi) (20 zhu). Grind into powder. Mix with honey to form pills. Take after meals.

Xiong Zhi Wan (Ligusticum and Angelica Pills) (from *Qianjin Fang*):
Treats mouth and corner sores.
* Xiong (Rhizoma Chuanxiong), Baizhi (Radix Angelicae Dahuricae), Ju Pi (Pericarpium Citri Reticulatae), Guixin (Cortex Cinnamomi), Zao Rou (Sarcandra Jujubae) (each 1.5 liang). Grind into powder. Mix with honey to form pills. Take 15 pills after meals. Also hold in the mouth until healed. This formula is very effective.

Xiong Wan (Ligusticum Pills):
Treats mouth and corner sores.
* Xiong (Rhizoma Chuanxiong) (2 liang);
* Baizhi (Radix Angelicae Dahuricae);
* Chen Ju Pi (Aged Pericarpium Citri Reticulatae) (soaked, skin removed, white pith kept);
* Huanglian (Radix Coptidis) (must removed, each 0.5 liang). Grind into powder. Mix with refined honey to form pills the size of paulownia seeds.

Luafa Hui San (Hair Ash Powder):
Treats sores on the mouth and corners, as well as malignant sores beside the mouth.
* Luafa (Ash of tangled hair);
* Huanglian (Radix Coptidis) (must removed);
* Gu Xu (Ash of old cotton wadding) (each 1 liang);
* Gan Jiang (Rhizoma Zingiberis Recens) (processed, 0.5 liang). Grind into a powder and mix evenly. Apply an appropriate amount to the sore.

Sang Zhi San (Mulberry Sap Powder):
Treats mouth and corner sores.
Take tender branches of mulberry trees and burn them to ash on iron. Mix with goose fat (E Zhi) and apply.

Bing Fen San (Betel Nut Powder):
Treats sores at the corners of the mouth that spread and do not respond to treatment. (Also known as Li Xiao San / Instant Effect Powder).
* Bing Lang (Areca Seed) (burned until carbonized but retaining nature);
* Qing Fen (Calomelas) (a small amount). Grind into fine powder. Sprinkle onto the sore opening for immediate healing. Another method uses condensation dripping from the lid of a rice steamer to mix and apply.

Wu Jin San (Black Gold Powder):
Treats mouth and corner sores.
Take three dung beetles (Qiang Lang), burn to ash, grind finely into powder, and apply.

Method to treat mouth and corner sores:
Burn Yue Gua (Melon) to ash and apply.

Method to treat mouth and corner sores:
Take kuni root (Kui Gen) aged one year, preferably nearly rotten. Burn to ash and apply while hot.

Method to treat mouth and corner sores:
Apply wet bark of Qiu tree (Qiu Bai Pi). Heal in 3-4 applications. Another method uses leaves ground into powder applied to the sore.

Method to treat corner sores:
Use a rice steamer immediately after cooking rice. While hot, expose the lips to the steam/heat of the steamer, pressing/warming the lips 27 times. The sore will stop within 2-3 days.

Method to treat malignant sores of the mouth/corners, and sores in the throat, mouth, and tongue:
Coast Huangbai (Cortex Phellodendri) with honey, roast, grind, and sieve into powder. Apply to the sore for efficacy. Alternatively, shape like a duck's tongue and hold in the mouth.

Xing Ren San (Almond Powder):
Treats sores on the mouth and corners.
* Xing Ren (Semen Armeniacae Amarum) (1 fen, soaked in hot water, skin and tip removed, double-kernel);
* Qian Shuang (Plumbum Subcarbonas) (0.5 fen);
* She Xiang (Moschus) (a small amount). First grind Xing Ren finely, then add Qian Shuang and She Xiang...

Bing Lang San (Betel Nut Powder):
Treats white sores on the mouth and corners.
Take two Areca Seeds, burn to ash retaining their nature, grind finely, and apply. Excellent effect. Apply 3-5 times daily.

Method to treat Yan Wen (Swallow-Corner Sores):
Burn White Yang branch (Bai Yang Zhi) on iron to extract oil. Apply while hot.

Another Method:
Place the heel of a wooden clog into ... ash to make it hot. Take it and hang it on both corners of the mouth, 27 times each.

Method to treat Yan Kou Chuang (Swallow-Mouth Sores) on the corners:
Take the tips of chopsticks from 100 families, burn to ash, and apply to the sore.

Method to treat ... sores on the corners:
Take dust/debris from ... tables, burn, and apply. Heals.

Method to treat small corner sores:
Grind Sang Ye (Folium Mori) to extract white juice and apply.