舌下生小舌为重舌。宜冰硼散搽之。
舌上生核。强硬作痛者。为痰气。用衣针点破。搽冰硼散。服清火消痰之药。
舌上 生疮。形如杨梅。外无寒热。内却心烦者。为重 。忌用针刺。宜黄连解毒汤加桔梗、甘草。外兼吹
药。
舌上生疮。其形如豆。坚硬寒热。疼痛应心者。疔也。宜蟾酥丸含于舌下。随化随咽。或再服三粒以解内
毒。甚者刺之。或灸少冲穴。
弄舌者微露即收也。属心脾经亏损。宜温脾散补之。大病后者难医。
舒舌者舌舒长。良久方收也。由心脾积热。宜泻黄散主之。
凉膈散（见口部） 黄连解毒汤 蟾酥丸（见疔疮门）
经络 当门为齿。上属督脉。下属任脉。两傍为牙。上属足阳明胃经。下属手阳明大肠经。夫牙者骨之
标而属肾。牙之生如木之栽于土也。如肠胃素有湿热。上出于牙龈之间。适被风寒。或为饮冷所逼。则
湿热不得外发而作痛。乃阳明病。非少阴病也。是症以寒为标。故外用擦漱之药宜辛温。取其散寒开
郁。以热为本。故内服之药宜辛凉。取其散热清中。如连翘汤之类。再火胜则痛必牵扯腮颧。加石膏。风
胜则肿。加防风。气胜则长。加栀子。气郁则胀。亦加栀子。痰胜则木。加贝母。外以醋漱之。去其痰涎。泻其
风热。疳慝则黑。加使君子肉。虫蚀则蛀。加槟榔。外以五灵脂汤化漱之以杀其虫。再血虚则齿痒。肠胃
虚则齿露。过于劳则齿浮。肾虚则齿豁。惟精固则齿坚。又当随其症而用滋补也。
The emergence of a small tongue beneath the main tongue is called *Chong She* (Double Tongue). It is appropriate to apply *Bingpeng San* (Ice and Borax Powder) topically.
If a nodule forms on the tongue, characterized by stiffness and pain, it is attributed to Phlegm-Qi stagnation. The nodule should be pricked with a clothing needle, followed by topical application of *Bingpeng San* and oral administration of herbs that clear heat, reduce fire, and resolve phlegm.
If sores form on the tongue, resembling bayberries, without external symptoms of chills or fever but accompanied by internal irritability, it is referred to as severe mouth sore (likely *Zhong Gan*). Pricking with needles is contraindicated. It is appropriate to treat with *Huanglian Jiedu Tang* (Coptis Decoction for Resolving Toxicity) supplemented with *Jiegeng* (Platycodon Root) and *Gancao* (Licorice Root), combined with the topical insufflation of medicated powder.
If a sore forms on the tongue, shaped like a bean, hard, accompanied by chills and fever, and the pain radiates to the heart region, it is a *Ding Chuang* (Carbuncle/Furuncle). It is appropriate to hold *Chansu Wan* (Toad Venom Pill) under the tongue, swallowing it as it dissolves, or take three additional pills to resolve internal toxicity. In severe cases, acupuncture may be used, or moxibustion applied to the Shaocong acupoint (*Shaochong*, HT9).
*Nong She* (Playing Tongue) refers to the tongue protruding slightly and immediately retracting. This belongs to deficiency in the Heart and Spleen meridians. It is appropriate to tonify with *Wenpi San* (Warm the Spleen Powder). Cases occurring after major illnesses are difficult to treat.
*Shu She* (Extended Tongue) refers to the tongue extending outward and taking a long time to retract. This is caused by accumulated heat in the Heart and Spleen. It is primarily treated with *Xiehuang San* (Drain the Yellow Powder).
*Liangge San* (Cool the Diaphragm Powder) (see Mouth section); *Huanglian Jiedu Tang* (Coptis Decoction for Resolving Toxicity); *Chansu Wan* (Toad Venom Pill) (see Carbuncle section).
Regarding meridians: The front teeth are called *Chi*, belonging superiorly to the Du Meridian and inferiorly to the Ren Meridian. The side teeth are called *Ya*, belonging superiorly to the Foot-Yangming Stomach Meridian and inferiorly to the Hand-Yangming Large Intestine Meridian. Teeth are the exterior manifestation of bones and belong to the Kidney. The growth of teeth is like planting trees in soil. If damp-heat exists internally in the stomach and intestines and rises to the gums, and is simultaneously constrained by wind-cold or forced by cold drinks, the damp-heat cannot diffuse outward, resulting in pain. This is a Yangming disease, not a Shaoyin disease. Since cold is the manifest aspect (biao), external rinsing and wiping medications should be pungent and warm to disperse cold and open stagnation. Since heat is the root aspect (ben), internal medications should be pungent and cool to dissipate heat and clear the middle jiao, such as *Lianqiao Tang* (Forsythia Decoction). If fire pathogen is excessive, pain will radiate to the cheeks and zygomatic arches; add *Shigao* (Gypsum Fibrosum). If wind pathogen is excessive, swelling occurs; add *Fangfeng* (Saposhnikovia Root). If qi is excessive, abnormal growth occurs; add *Zhizi* (Gardenia Fruit). If qi stagnation causes distension, also add *Zhizi*. If phlegm is excessive, discoloration occurs; add *Beimu* (Fritillaria Bulb), rinse externally with vinegar to remove phlegm-saliva and drain wind-heat. If caries cause blackening, add *Shijunzi Rou* (Seed of Quisqualis); if worms cause cavities, add *Binglang* (Areca Seed), rinse externally with *Wulingzhi Tang* (Trogopterus Dung Decoction) to kill parasites. If blood deficiency causes tooth itching, stomach-intestine deficiency causes gum recession and exposed teeth, overwork causes loose teeth, and kidney deficiency causes sparse teeth. Only when essence is secure will teeth be firm. Treatment should further involve tonification according to specific symptoms.