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According to *Chushi Bingyuan* (Source of Diseases in Children) regarding the syndrome of chest and hypochondriac fullness and pain in children: When raising infants, if care is not regulated properly, they may be injured by cold and heat pathogens. Cold qi enters the abdomen and accumulates due to deficiency; subsequently, improper feeding with milk, combined with disharmony of cold and heat, triggers latent cold, which clashes with qi and fails to dissipate. Located between the chest and diaphragm, this causes fullness and pain.

According to *Wuguan Guanzhenzhunang* regarding the syndrome of infantile qi pain: This results from injury caused by raw and cold foods. The pain is located only above, below, to the left, or right of the umbilicus, indicating it is qi-related. It should be treated with *Muxiang San* (Aucklandia Powder) (see formula in this section).

*Qianjin Fang* (Prescriptions Worth a Thousand Gold) treats internal pain due to qi accumulation under the ribs in young children, accompanied by wheezing and counterflow qi, difficult breathing, alternating chills and fever, emaciation, and anorexia. Formula for *Matong Su Wan* (Horse Dung Millet Pill):
*Matong Zhongsu* (Millet from horse dung, 18 zhu), *Xingren* (Apricot Seed, soaked in water and peeled), *Ziwan* (Aster Root), *Xixin* (Asarum, each half liang), *Shigao* (Gypsum Fibrosum), *Qinjiao* (Gentiana Macrophylla Root), *Banxia* (Pinellia Tuber, soaked in water seven times), *Fuling* (Poria), *Wuweizi* (Schisandra Fruit, each 6 zhu).
Grind the above nine ingredients into powder, mix with honey to form pills the size of small beans. Take ten pills three times daily. If ineffective, increase to twenty pills per dose.

*Muxiang San* (Aucklandia Powder) from *Wuguan Guanzhenzhunang*: Promotes qi movement and relaxes the middle jiao. Treats chest and hypochondriac stuffiness, stabbing pain in the heart and abdomen, distension and fullness of the hypochondrium, reduced appetite, acid regurgitation, vomiting and counterflow qi, dysphagia and oppression. It treats all types of qi disorders.
*Muxiang* (Aucklandiae Radix), *Qingjupi* (Green Tangerine Peel, each 3 liang), *Jianghuang* (Curcumae Longae Rhizoma), *Mai* (Wheat, dehusked and stir-fried, each 5 liang), *Peng'ezhu* (Curcumae Phaeocaulis Rhizoma, 4 liang), *Gancao* (Licorice Root, sliced and stir-fried), *Yan* (Salt, stir-fried, each 11 liang).
Grind the above into powder. Take one qian per dose, mixed with boiling water, at any time.

*Waitai Miyao* (Essential Prescriptions of the External Library) cites the moxibustion method from *Jiayi Jing*: Laogong (EX-2, also known as Wuli) is located at the arterial pulse in the center of the palm. Moxa two cones. It indicates febrile diseases with fever, fullness with desire to vomit or hiccup, no sweating after three days, palpitations and fear, chest and hypochondriac pain preventing turning over, cough with fullness, dark urine, blood in stool, epistaxis, vomiting blood, counterflow qi, incessant belching, throat pain, inability to eat, excessive thirst, oral ulcers, hot palms, irritability due to wind-heat, sadness due to internal injury, frequent vomiting and sighing, uncontrollable laughter, vexation, cough, alternating chills and fever, frequent hiccups, abdominal masses, fetid breath in children, chest and hypochondriac distension, jaundice with yellow eyes.