舌者心之窍，脾之脉络所系，心脾壅热上冲，故令舌肿，渐渐胀大，塞满口中，名
曰木舌。宜木通散（见胎热）服之，乌鱼散涂之。又有重舌者，亦心脾蕴热所致，由血气俱盛，附
舌根而重生一物，形如舌而略短小，以真蒲黄和黄柏末敷之，或牙硝亦可。
脾脏有热，令舌络微紧，时时舒出，名曰弄舌，切勿用寒药及下之，唯宜泻黄散，甚
有饮水者，脾胃虚，津液少也。
生时舌下有膜，如石榴子，或口上 有 ，不能出声，速用指甲掐破，或苇草割之，
血出即活。若血出不止，猪脂调发灰敷之。
乌鱼散
乌鱼骨（五钱） 蜣螂 蒲黄（各二钱五分） 白矾（五分）
鸡子黄调涂舌上，咽津无妨。
青液散 治重舌并口疮。
青黛 朴硝（各一钱） 龙脑（一字）
蜜调鹅羽蘸敷。
泻黄散 治弄舌兼治木舌。
藿香叶 炒山栀 石膏 甘草 防风
小儿生后，宜勤看口，有口糜者，膀胱移热于小肠，肠膈不便，上为口糜，导赤合五苓治之。
鹅口者，初生白屑满舌，如鹅之口，乃胎热所致，用发缠指上，蘸薄荷自然汁拭之。
如不已，更以粟米煎浓汁拭之，外用
过黄丹渗患处。
初生一复时，满口上下牙齿，忽变白色，恍如齿牙，名曰马牙惊，不治。若因将养过
温，积热熏蒸于上，发为口疮，宜炒焦干姜，同黄连为末敷之，以木通散（见胎热）与乳母服。
如不愈，更以矾汤浸脚，上半日，以蜜炙黄柏、炒僵蚕末敷之立效。如只口角烂疮，发灰以猪脂调敷即愈。
导赤散
生地 木通 赤茯 麦冬 甘草 灯心
五芩散
猪苓 赤茯 赤芍 白术 肉桂
口糜散 口疮糜烂神效。
黄柏 黄连（各一两） 雄黄 没药（各二钱） 片脑（五分）
为末干掺疮上。
舌是心之外窍，与脾的脉络相连。若心脾积热上冲，就会导致舌头肿胀，逐渐胀大，塞满口腔，这种情况称为木舌（舌头肿大僵硬）。适宜服用木通散（参见胎热章节），并用乌鱼散外涂治疗。又有重舌（舌下复生一小舌）的情况，也是由心脾蕴热所致，因气血旺盛，在舌根处又长出一个物体，形状像舌头但略短小，可用真蒲黄配合黄柏末敷贴，或者使用牙硝也可以。
脾脏有热，会使舌络轻微拘紧，舌头时时伸出，这种情况称为弄舌（舌头频繁伸缩），千万不要使用寒凉药物及泻下法，只适宜用泻黄散治疗。如果伴有饮水症状，则是脾胃虚弱、津液不足的表现。
婴儿出生时舌下有薄膜，形状像石榴籽，或者口唇上有裂口/异常，导致不能出声，应迅速用指甲掐破，或用芦苇草割开，出血后婴儿即可苏醒。如果血流不止，可用猪脂调和发灰敷贴止血。
乌鱼散方：
乌鱼骨（五钱） 蜣螂 蒲黄（各二钱五分） 白矾（五分）
用鸡蛋黄调匀涂抹于舌上，吞咽津液无妨。
青液散：治疗重舌并口疮。
青黛 朴硝（各一钱） 龙脑（一字）
用蜂蜜调和，蘸鹅毛羽涂抹患处。
小儿出生后，应当勤加观察口腔。若有口糜（口腔黏膜溃烂），是由于膀胱移热于小肠，导致肠道隔阂不便，热气上蒸形成口糜，可用导赤散合五苓散治疗。
鹅口疮：初生儿舌面布满白色屑状物，如同鹅的口部，这是胎热所致。用头发缠在手指上，蘸取薄荷自然汁擦拭。
如果病情未愈，再用粟米煎煮浓汁擦拭，外用飞过黄丹撒布患处。
婴儿出生不到一天，满口上下牙龈突然变白，恍如长出牙齿，称为马牙惊，通常无需治疗。如果是因养育过暖，积热熏蒸于上，引发口疮，宜用炒焦的干姜同黄连研为细末敷贴，同时让乳母服用木通散（参见胎热章节）。
如果仍不痊愈，再用矾汤浸泡双脚半天，然后用蜜炙黄柏、炒僵蚕研末敷贴，立即见效。如果只是口角烂疮，用发灰以猪脂调敷即可痊愈。
The tongue is the orifice of the Heart and is connected to the meridians of the Spleen. If Heat from the Heart and Spleen obstructs and rushes upward, it causes the tongue to swell, gradually enlarging until it fills the mouth; this condition is named Mu She (Wood Tongue). It is appropriate to administer Mutong San (see Fetal Heat) internally and apply Wuyu San externally. Another condition is Chong She (Double Tongue), which is also caused by accumulated Heat in the Heart and Spleen. Due to abundant Qi and Blood, a new growth emerges attached to the root of the tongue, resembling a tongue but slightly shorter and smaller. This can be treated by applying Zhen Puhuang (Real Cinnamon Fern Spore) mixed with Huangbai End (Phellodendron Bark Powder), or Yaxiao (Niter) may also be used.
Heat in the Spleen organ causes the tongue meridians to become slightly tight, resulting in the tongue frequently protruding; this is called Nong She (Playing Tongue). One must absolutely avoid using Cold medicines and purgatives; instead, Xiehuang San is suitable. If there is excessive drinking of water, it indicates deficiency of the Spleen and Stomach with insufficient Body Fluids.
At birth, some infants have a membrane under the tongue, resembling a pomegranate seed, or abnormalities on the lips that prevent vocalization. Quickly break it with fingernails or cut it with reed grass; once blood flows, the infant will revive. If bleeding does not stop, apply Fa Hui (Hair Ash) mixed with Zhuzhi (Pig Fat) to the area.
Wuyu San:
Wuyu Gu (Cuttlefish Bone, 5 qian) Changlang (Dung Beetle) Puhuang (Cinnamon Fern Spore, each 2.5 qian) Baifan (Alum, 0.5 qian).
Mix with Ji Zi Huang (Egg Yolk) and apply to the tongue; swallowing saliva is harmless.
Qingye San: Treats Chong She (Double Tongue) and Kou Chuang (Mouth Sores).
Qingdai (Indigo Naturalis) Puxiao (Mirabilite, each 1 qian) Longnao (Borneol, 1 zi).
Mix with honey, dip a goose feather, and apply.
Xiehuang San: Treats Nong She (Playing Tongue) and also Mu She (Wood Tongue).
Huoxiang Ye (Agastache Leaf) Chao Shanzhi (Stir-fried Gardenia) Shigao (Gypsum) Gancao (Licorice) Fangfeng (Saposhnikovia)
After birth, infants' mouths should be inspected diligently. If Kou Mi (Oral Thrush/Mucosal Ulceration) occurs, it is due to Heat transferring from the Bladder to the Small Intestine, causing obstruction in the intestines and diaphragm, leading to Heat rising and forming oral ulcers. This is treated with Daochi San combined with Wu Ling San.
E Kou (Goose Mouth): Newborns have white flakes covering the tongue, resembling a goose's mouth, caused by fetal Heat. Wrap hair around the finger, dip into natural Mint Juice, and wipe.
If it persists, wipe again with thick decoction of Millet. Externally, apply Guo Huangdan (Processed Red Lead Oxide) to the affected area.
Within one day after birth, if the upper and lower gums suddenly turn white, resembling teeth, it is called Ma Ya Jing (Horse Tooth Palpitation); this usually requires no treatment. However, if caused by over-warming during care, leading to accumulated Heat steaming upward and causing mouth sores, apply powder made from Chao Jiao Ganjiang (Stir-fried Scorched Ginger) and Huanglian (Coptis). Additionally, the nursing mother should take Mutong San (see Fetal Heat).
If it does not heal, soak the feet in Fan Tang (Alum Decoction) for half a day, then apply powder of Mi Zhi Huangbai (Honey-fried Phellodendron) and Chao Jiangcan (Stir-fried Silkworm) for immediate effect. If only angular cheilitis (rotten sores at the corners of the mouth) exists, apply Fa Hui (Hair Ash) mixed with Zhuzhi (Pig Fat) to cure it.
Daochi San:
Shengdi (Rehmannia Root) Mutong (Akebia Stem) Chi Fu (Red Poria) Maidong (Ophiopogon Tuber) Gancao (Licorice) Dengxin (Juncus Effusus)
Wu Ling San:
Zhuling (Polyporus) Chi Fu (Red Poria) Chi Shao (Red Peony Root) Baizhu (Atractylodes Macrocephala) Rougui (Cinnamon Bark)
Kou Mi San: Highly effective for treating oral ulceration.
Huangbai (Phellodendron Bark) Huanglian (Coptis Rhizome, each 1 liang) Xionghuang (Realgar) Moyao (Myrrh, each 2 qian) Pian Nao (Borneol, 0.5 qian).
Grind into powder and sprinkle dryly onto the sores.