癖者、血膜包水，侧僻于胁旁，时时作痛也。惟癖为能发潮，为能生寒热，故疟家多畜黄水，日久而复结癖于中脘，
寒热不已，有是疾者以此。小儿脏腑和平，荣卫调畅，则津液自然流通，纵使多饮水浆，不能为病；惟失哺失调，三焦
关格，以致水饮停滞，肠胃不能宣通，如冷气搏之，则结聚而成癖。轻者用积滞木香丸，重者用取癖丸。仲阳云∶腹中
有癖不食，但饮乳是也，当渐用白饼子下之，如不早治，则不能食，脾胃虚弱，四肢不举，诸邪遂生，羸瘦而成疳矣。
木香丸 治吐乳、泻乳，其气酸臭，由啼叫不已，以乳与儿，停滞不化，是为乳积。肚硬热渴吐泻，由饮食无
度，过饱即睡，是为食积。腹痛啼叫，利如蟹渤，由触忤其气，荣卫不和，淹延日久，是为气积。疟后肚内结癖成块。
木香（二钱） 莪术（二钱） 砂仁（二钱） 青皮（去瓤、二钱） 朱砂（研细、二钱） 代赭石（二钱） 大
丁香（二钱） 巴豆（去油、一钱）
上为细末和匀，飞白面糊和丸麻子大，每服二三丸，乳伤乳汁下，食伤米饮下。
取癖丸 治小儿癖块大痛，用之如应。
甘遂（微炒、二钱） 芫花（微炒、二钱） 黑牵牛（半炒半生、磨筛取末、二钱） 辣桂（二钱） 莪术（二钱）
青皮（去瓤、二钱） 木香（二钱） 桃仁（炒、二钱） 五灵脂（二钱） 巴豆（去油、一钱）
上为末，研和十分细嫩，飞白面糊丸麻子大，每服一二丸，姜蜜煎汤灌下，泄后冷粥补，仍和胃。
挨癖丸 治乳癖、谷症、腹中块痛。
青皮（去瓤、三钱） 木香（三钱） 莪术（三钱） 生地黄（三钱） 代赭石（火 醋淬、研极细末、三钱） 巴
豆（压去油尽，一钱）
上为细末，醋面糊丸麻子大，每服二丸，食后擦姜泡汤下。
Pi (abdominal mass) refers to a condition where blood membranes enclose fluid, lodging obliquely beside the hypochondrium, causing intermittent pain. Only Pi can trigger tidal fever and generate alternating chills and fever; thus, patients with malaria often accumulate yellow fluid in their bodies, which, over time, re-condenses into a Pi mass in the epigastrium, resulting in persistent chills and fever. Those suffering from this ailment should refer to this method. Children possess harmonious Zang-Fu organs and smooth Ying-Wei (Nutritive and Defensive Qi), allowing body fluids to flow naturally; even if they consume large amounts of water or liquids, it will not cause disease. However, improper feeding and regulation can lead to obstruction and reversal of the San Jiao (Triple Burner), causing fluid retention and preventing the intestines and stomach from circulating freely. As if attacked by cold qi, these factors condense to form Pi. For mild cases, Jizhi Muxiang Wan (Accumulation Stagnation Costus Pill) is used; for severe cases, Qu Pi Wan (Expel Pi Pill) is employed. Qian Yi (courtesy name Zhongyang) stated: "There is Pi in the abdomen, refusal to eat, but willingness to drink milk." This is the symptom. One should gradually administer Baibing Zi (White Cake Pill) to purge it. If not treated early, the child will be unable to eat, leading to Spleen-Stomach deficiency, inability to move the limbs, generation of various pathogens, emaciation, and eventual development into Gan syndrome (infantile malnutrition).
Muxiang Wan (Costus Pill): Treats vomiting milk and diarrhea of milk, with a sour and foul odor. This results from incessant crying and feeding the infant, causing milk stagnation and failure to digest, known as Milk Accumulation. A hard abdomen, fever, thirst, vomiting, and diarrhea result from unregulated diet and sleeping immediately after overeating, known as Food Accumulation. Abdominal pain with crying and loose stools resembling crab excrement result from violating the Qi, disharmony of Ying-Wei, and prolonged duration, known as Qi Accumulation. After malaria, a Pi mass forms inside the abdomen.
Ingredients: Muxiang (Costi Radix, 2 qian), Ezhu (Curcumae Rhizoma, 2 qian), Sharen (Amomi Fructus Rotundus, 2 qian), Qingpi (Citri Reticulatae Pericarpium Viride, removed pith, 2 qian), Zhusha (Cinnabar, finely ground, 2 qian), Daizheshi (Haematitum, 2 qian), Dadingxiang (Eugeniae Flos, 2 qian), Badou (Crotonis Fructus, oil removed, 1 qian).
Preparation and Administration: Grind all ingredients into a fine powder and mix evenly. Use sifted white wheat flour paste to form pills the size of hemp seeds. Take 2–3 pills per dose. For injury caused by milk, take with breast milk; for injury caused by food, take with rice gruel or water.
Qu Pi Wan (Expel Pi Pill): Treats large and painful Pi masses in children; its efficacy is prompt.
Ingredients: Gansui (Kansui Radix, lightly stir-fried, 2 qian), Yuanhua (Genkwa Flos, lightly stir-fried, 2 qian), Heiqianniu (Pharbitidis Semen, half stir-fried half raw, ground and sieved for powder, 2 qian), Lagui (Cinnamomi Ramulus, 2 qian), Ezhu (Curcumae Rhizoma, 2 qian), Qingpi (Citri Reticulatae Pericarpium Viride, removed pith, 2 qian), Muxiang (Costi Radix, 2 qian), Taoren (Persicae Semen, stir-fried, 2 qian), Wulingzhi (Trogopterori Faeces, 2 qian), Badou (Crotonis Fructus, oil removed, 1 qian).
Preparation and Administration: Grind all ingredients into a very fine powder. Use sifted white wheat flour paste to form pills the size of hemp seeds. Take 1–2 pills per dose. Administer via infusion of ginger and honey. After purgation, replenish with cold congee to harmonize the Stomach.
Ai Pi Wan (Approach Pi Pill): Treats milk Pi, grain accumulation (Gu Zheng), and abdominal masses with pain.
Ingredients: Qingpi (Citri Reticulatae Pericarpium Viride, removed pith, 3 qian), Muxiang (Costi Radix, 3 qian), Ezhu (Curcumae Rhizoma, 3 qian), Shengdihuang (Rehmanniae Radix Recens, 3 qian), Daizheshi (Haematitum, calcined with vinegar quenching, ground to extremely fine powder, 3 qian), Badou (Crotonis Fructus, pressed until all oil is removed, 1 qian).
Preparation and Administration: Grind all ingredients into a fine powder. Use vinegar and wheat flour paste to form pills the size of hemp seeds. Take 2 pills per dose. Administer after meals with an infusion of rubbed ginger.