〔汤〕客忤者，小儿神气软弱，忽有非常之物，或未经识见之人触之，或经历神庙佛寺与鬼神气相忤也，
故谓之客忤，亦名中客。其状吐下青黄白色，水谷将下时，腹痛反倒，面变五色，其状若痫，但目不上插耳，
其脉数者是也。亦宜服苏合香丸并真珠散。
真珠散 治客忤惊风，鬼疰惊邪，痰热，心舍不宁，精神不定，心常怔忡，睡中惊跳，时或切牙，五心烦热，
有汗兼喘，面赤舌白，呵欠烦渴，小便赤泻，或吐利黄沫。常服，辟邪安神。
真珠 海螵蛸 滑石（各一钱） 白茯苓 人参 白附子 甘草（炙） 全蝎 麝香 脑子（另研。各五钱）
生朱（另研，一钱） 金银箔（金三十片，银二十片）
上末，和匀半钱，煎灯心麦门冬汤，入蜜少许调服，日午、临卧各一服。
〔田〕客忤因而惊忤者，治法用灶中黄土研二两，鸡子一枚去壳，二件相和，入少许水调，先以桃
柳枝汤浴儿，后将此药涂五心及顶门上。（陈无择法用灶中黄土、蚯蚓屎等分，如此法涂之。）
〔《外》〕治卒客忤，噤口不能言，细辛、桂心等分，纳口中效。
〔世〕白附丸 通治小儿咳嗽有痰，感冒发热，吐泻，心神不安，神效。
南星（二两） 半夏 白附子 白矾（各一两）
上为细末，姜汁糊丸如桐子大。一岁儿服八丸，用薄荷汤化下。（南星、半夏用冬藏雪水于六月六日浸起，
晒干，又浸，凡九次方用。）
[Tang] The condition known as *Ke Wu* (Guest Intrusion) occurs because a child's spirit and qi are weak. Suddenly encountering unusual objects, being touched by people they have never seen, or passing through temples and Buddhist monasteries where one clashes with the qi of ghosts and deities, leads to this condition. Hence it is called *Ke Wu*, also referred to as *Zhong Ke*. Its manifestations include vomiting and purging of green, yellow, or white substances; abdominal pain accompanied by body retroflexion when food and fluids are about to be expelled; fluctuating facial complexion; a presentation resembling epilepsy but without upward deviation of the eyes; and a rapid pulse. It is appropriate to administer Suhexiang Wan (Styrax Pill) and Zhenzhu San (Pearl Powder).
Zhenzhu San: Treats *Ke Wu* convulsions, ghostly invasion and frightful evil, phlegm-heat, disharmony of the Heart residence, restlessness of spirit, constant palpitations (*Zheng Chong*), startle during sleep, teeth grinding, heat in the five centers, sweating with panting, red face with white tongue coating, yawning with irritability and thirst, dark scanty urine or diarrhea, and occasionally vomiting or purging yellow froth. Regular use dispels evil influences and calms the spirit.
Ingredients: Pearl (Zhenzhu), Cuttlefish Bone (Haipiaoxiao), Talcum (Huashi) [each 1 qian]; Poria (Baifuling), Ginseng (Renshen), Aconite Root Lateralis Preparata (Baifuzi), Licorice Root (Gancao, roasted); Scorpion (Quanxie), Musk (Shexiang), Borneol (Naozi, ground separately) [each 5 qian]; Cinnabar (Shengzhu, ground separately, 1 qian); Gold Leaf and Silver Leaf (Jinyinbo) [30 pieces of gold, 20 pieces of silver].
Preparation and Administration: Grind all ingredients into a fine powder and mix uniformly. Take half a qian each time. Decoct Juncus effusus (Dengxincao) and Ophiopogon tuber (Mendongtang), add a little honey, and take orally. Administer once at noon and once before bedtime.
[Tian] For cases where *Ke Wu* induces fright, the treatment method involves using two liang of loam from the kitchen hearth, ground finely, mixed with one egg (shell removed). Add a small amount of water to form a paste. First, bathe the child in a decoction of peach and willow branches, then apply this medicine to the five centers (palms, soles, and vertex) and the fontanelle area. (Chen Wuyue’s method uses equal parts of kitchen hearth loam and earthworm excrement, applied in the same manner.)
[Waitai Miyao] To treat sudden onset of *Ke Wu* with locked jaws and inability to speak, use equal parts of Asarum (Xixin) and Cinnamon Twig (Guixin), placed in the mouth, which is effective.
[Shi] Baifu Wan: Universally treats pediatric cough with phlegm, cold-induced fever, vomiting and diarrhea, and mental restlessness, with miraculous efficacy.
Ingredients: Arisaema rhizome (Nanting, 2 liang); Pinellia tuber (Banxia), Aconite Root Lateralis Preparata (Baifuzi), Alum (Baifan) [each 1 liang].
Preparation and Administration: Grind into a fine powder. Use ginger juice to make pills the size of paulownia seeds. One-year-old infants take eight pills, dissolved and administered with mint tea. (Note: Nanting and Banxia must be soaked in snowwater stored from winter on the sixth day of the sixth lunar month, dried, and re-soaked repeatedly for nine cycles before use.)