走马牙疳者，多因气虚受邪，及有宿滞，留而不去，积温成热，虚热之气上蒸，或食甜酸
咸腻之物。脾虽喜甘，积滞日久，蕴热上熏于口，致齿焦黑烂，间出清血，血聚成脓，脓臭
成虫，侵蚀口齿，甚至腮颏穿破，乳食不便，面色光浮，气喘热作，名走马牙疳。宜芦荟丸主
之，外用烧盐散、铜青散敷之。若经久不愈，敷于唇之上下，乃成硼砂证，或齿落骨露，饮食
减少，气促痰鸣，必致危矣。
内金散 治小儿牙根臭烂黑色，有虫作痛。
鸡内金（即鸡 内黄皮，阴干为末，一两） 白芷（五钱） 铜青（一钱） 麝香（一字）
上为极细末，用温盐水搅，口贴。
立效散 治牙疳。
青黛 黄柏末 白枯矾 五倍子（各一钱）
上为极细末，用米泔水搅，口内贴。
真黄散 治走马牙疳。
鸡 真黄皮（不以多少，油灯上烧存性，研极细末，入黄柏白矾枯麝香一字，用米泔
水搅，口内贴。）
烧盐散 治小儿走马牙疳，肉溃黑烂。
橡斗 食盐 麝香
上用橡斗大者，入食盐满壳，二合为一个，或五七个，安于炭火内，和盐 透取出放地上，
以瓦盖定退火毒。候冷取起为末，入麝少许，同研极细末，用米泔水搅，敷贴，勿用纸裹，瓦
盒盛有盐，能作润湿。
盖小儿脏腑怯弱，乳食过度则伤脾胃，贵乎调理得中，无有太过不及。否则脾胃受伤，面
恍无色，口中凉气，不思乳食，呕吐肌瘦，虚弱，腹中作痛，则当补脾益胃。凡人以胃气为本，
惟治病亦然。胃气有虚有实，虚则有呕吐不食之证，实则有痞满内热之证。虚者益之，实者泻
之，欲得其平则可矣。平胃散、观音散、益黄散之剂皆壮胃之要药，可对证而调治之。
Zouma Yagan (Horse-running Gangrene of the Teeth) is mostly caused by Qi deficiency with pathogenic invasion, as well as retained food stagnation that lingers and does not dissipate. Accumulated heat transforms into warmth, and deficient heat qi steams upward, or it results from consuming sweet, sour, salty, or greasy foods. Although the Spleen favors sweet flavors, long-term stagnation breeds heat that steams upward to the mouth, causing teeth to turn black and rot, with clear blood occasionally oozing out. Blood accumulates to form pus, which becomes foul-smelling and breeds worms that erode the oral cavity and teeth. In severe cases, the cheeks and chin may perforate, making breastfeeding and eating difficult. The complexion appears shiny and puffy, with panting and fever attacks. This condition is named Zouma Yagan (Horse-running Gangrene of the Teeth). It should be primarily treated with Lushui Wan (Aloe Pill), and externally applied with Shaoyan San (Burnt Salt Powder) or Tongqing San (Chlorite Powder). If it persists without healing, applying powder above and below the lips leads to Pengsha Zheng (Borax Syndrome), or teeth fall out with bone exposure, reduced diet, shortness of breath, and phlegm rattle, inevitably leading to a critical state.
Neijin San: Treats children's gum roots becoming foul, rotten, and black, with pain caused by worms.
Jineijin (Chicken Gizzard Membrane, i.e., the inner yellow skin of the chicken gizzard, dried in shade and powdered, 1 liang) Baizhi (Angelicae Dahuricae Radix, 5 qian) Tongqing (Chloritum, 1 qian) Shexiang (Moschus, 1 zi)
Grind all ingredients into an extremely fine powder. Mix with warm salt water and apply inside the mouth.
Lixiao San: Treats Yagan (Gangrene of the Teeth).
Qingdai (Indigo Naturalis) Huangbai (Phellodendri Cortex) Bai Kufan (Alumen Exsiccatum) Wubeizi (Galla Chinensis) (each 1 qian)
Grind all ingredients into an extremely fine powder. Mix with rice washing water and apply inside the mouth.
Zhenhuang San: Treats Zouma Yagan (Horse-running Gangrene of the Teeth).
Jinei Zhenhuangpi (True Yellow Skin of Chicken Gizzard Membrane, quantity unspecified, charred over an oil lamp until the nature remains, ground into an extremely fine powder; add Huangbai (Phellodendri Cortex), Baifan (Alumen), and Shexiang (Moschus, 1 zi). Mix with rice washing water and apply inside the mouth.)
Shaoyan San: Treats pediatric Zouma Yagan (Horse-running Gangrene of the Teeth) with flesh ulceration and black rot.
Xiangdou (Quercus Fructus Shell) Yan Shi (Sodium Chloride) Shexiang (Moschus)
Take large Xiangdou (Quercus Fructus Shell), fill with Yan Shi (Sodium Chloride), seal two shells together, or five to seven shells. Place them in charcoal fire and burn thoroughly along with the salt. Remove and place on the ground, covering with a tile to extinguish fire toxicity. After cooling, take out and grind into powder. Add a small amount of Shexiang (Moschus) and grind together into an extremely fine powder. Mix with rice washing water for application. Do not wrap in paper; store in a tile box, as the salt content maintains moisture.
Generally, children's Zang-Fu organs are fragile. Overconsumption of milk and food damages the Spleen and Stomach. It is crucial to regulate properly, avoiding excess or deficiency. Otherwise, damage to the Spleen and Stomach results in a pale complexion, cold air in the mouth, loss of appetite for milk and food, vomiting, emaciation, weakness, and abdominal pain. In such cases, one should tonify the Spleen and benefit the Stomach. For all people, Stomach Qi is the root; treating disease is no different. Stomach Qi can be deficient or excess. Deficiency presents with vomiting and inability to eat; excess presents with fullness and internal heat. Deficient conditions require tonification, while excess conditions require purgation. Achieving balance is the goal. Pingwei San (Peaceful Stomach Powder), Guanyin San (Guanyin Powder), and Yihuang San (Yellow-Enhancing Powder) are essential formulas for strengthening Stomach Qi and can be used to treat according to syndrome differentiation.