巢氏云∶蛔虫者、九虫之内一虫也，长一尺，亦有长五六寸者，或因脏腑虚弱而动，或因食甘肥而动，其动则腹中
痛，发作肿聚，行来上下，痛有休止，亦攻心痛，口喜吐涎及清水，贯伤心者则死。诊其脉，腹中痛，其脉法当沉弱而
弦，反脉大则是蛔虫也。此病因食物太早，爱甜怕苦，痛时便高声啼叫，只看人中上、鼻头唇口一时黑色，即是此症，
当服使君子丸、槟榔散、化虫丸药取下便无事。仲景云∶蛔厥者，其人当吐蛔，今病烦此为脏寒，乌梅丸主之。其蛔虫
穿心者，用薏苡根煎汤治之即安。
使君子丸 治小儿五疳，脾胃不和，心腹膨胀，时复 痛，不进饮食，渐至羸瘦，并宜服之。
白芍药 浓朴（制） 陈皮（去白） 川芎 甘草（各二钱半） 使君子肉（汤浸去黑皮、一两）
上为末，炼蜜丸如芡实大，每服一丸，陈米饮化下，大治小儿腹痛。
槟榔散 治肾疳宣露候良方，去虫后服此。
木香 槟榔 人参 黄连 甘草（炙、各等分）
上为末，每一钱，小者五分，熟水调服。
化虫丸 治小儿虫咬心痛，来去不定，不思饮食。
鹤虱（炒） 槟榔 胡粉 楝根皮（各半两） 白矾（三钱半、半生半火 ）
上为末，面糊丸绿豆大，三岁三十丸，温浆水入油三五滴吞下，食前。有虫皆化为水，大虫自下，且初服甚妙。
乌梅丸 治蛔厥，其人当吐蛔，今病者静而复烦，此为脏寒，蛔虫上入其膈，故烦，须臾复止，得食而呕，又
烦者蛔闻食臭出，其人当自吐蛔，又治久痢。
乌梅（七十五个） 干姜（二两半） 黄连（四两） 蜀椒（出汗） 当归（各一两） 细辛 人参 附子（炮、
去皮脐） 桂枝（去皮） 黄柏（各一两半）
上为末，用酒浸乌梅肉一宿，去核，蒸饭杵成泥，和药匀丸麻子大。每服十丸，食后米饮下，日三服，忌生冷等物。
Chao Yuanfang stated: Ascaris (Ascaris lumbricoides) is one of the nine parasites. It is one chi long, or sometimes five to six cun long. It may be triggered by deficiency and weakness of the Zang-Fu organs, or by consuming sweet and fatty foods. When it moves, there is abdominal pain, with swelling and mass formation that moves up and down. The pain has intervals of cessation. It may also attack the heart region causing pain. There is a tendency to salivate and vomit clear fluid. If the parasite penetrates the heart, death ensues. In pulse diagnosis for abdominal pain, the pulse should typically be deep, weak, and wiry. If the pulse is instead large, it indicates an infestation of ascaris. This disease arises from improper eating habits, such as eating too early or irregularly, a preference for sweets, and aversion to bitter tastes. During pain episodes, the child cries loudly. If the area above the philtrum, the nose tip, and the lips appear black simultaneously, this confirms the diagnosis. Treatment involves administering Shijunzi Wan (Quince Seed Pill), Binglang San (Betel Nut Powder), or Huachong Wan (Parasite-Destroying Pill) to expel the parasites, after which the condition resolves. Zhang Zhongjing stated: In cases of Reversal Cold due to Ascaris (Hui Jue), the patient will vomit ascaris. The current restlessness indicates coldness in the internal organs; Wumei Wan (Mume Pill) is the primary treatment. For those whose ascaris penetrates the heart, decocting Yiyi Gen (Coix Root) in water provides relief.
Shijunzi Wan (Quince Seed Pill): Treats the five types of infantile malnutrition (Wu Gan) in children, disharmony of the Spleen and Stomach, abdominal distension and fullness, intermittent abdominal pain, loss of appetite, and progressive emaciation. It is suitable for all these conditions.
Bai Shaoyao (Radix Paeoniae Alba), Nongpo (Cortex Magnoliae Officinalis, processed), Chenpi (Pericarpium Citri Reticulatae, white pith removed), Chuanxiong (Rhizoma Chuanxiong), Gancao (Radix Glycyrrhizae uralensis, each 2.5 qian), Shijunzirou (Seed of Quisqualis indica, soaked in water, black skin removed, 1 liang).
Grind the above into powder, mix with refined honey to form pills the size of a Chinese chestnut. Take one pill per dose, dissolved in aged rice water. It effectively treats pediatric abdominal pain.
Binglang San (Betel Nut Powder): A good prescription for treating Ren Gan Xuanlu Hou (a manifestation of Kidney-related infantile malnutrition with exposed teeth/gums); administer this formula after expelling parasites.
Muxiang (Radix Aucklandiae), Binglang (Areca Semen), Renshen (Radix Ginseng), Huanglian (Rhizoma Coptidis), Gancao (Radix Glycyrrhizae uralensis, honey-fried, equal parts).
Grind the above into powder. Take 1 qian per dose (0.5 qian for younger children), mixed with warm boiled water.
Huachong Wan (Parasite-Destroying Pill): Treats pediatric cardiac pain caused by parasitic biting, where pain comes and goes unpredictably, accompanied by loss of appetite.
Leshi (Herba Pedicularis), Binglang (Areca Semen), Hufen (Cerussa/Lead Carbonate), Lian Genpi (Cortex Meliae Toosendan, each 0.5 liang), Baifan (Alumen, 3.5 qian, half raw, half calcined).
Grind the above into powder, bind with wheat paste to form pills the size of mung beans. For a three-year-old child, take 30 pills. Swallow with warm sour rice water added with 3-5 drops of oil, taken before meals. All parasites are transformed into liquid, and larger ones are expelled naturally. It is highly effective when first administered.
Wumei Wan (Mume Pill): Treats Reversal Cold due to Ascaris (Hui Jue), characterized by vomiting of ascaris. The patient is initially quiet but becomes restless; this indicates internal cold. The ascaris moves upward into the diaphragm, causing restlessness, which ceases after a short while. Vomiting occurs upon eating. Further restlessness arises because the ascaris emerges upon smelling food odor, leading to spontaneous vomiting of ascaris. It also treats chronic dysentery.
Wumei (Fructus Mume, 75 pieces), Ganjiang (Rhizoma Zingiberis Recens, 2.5 liang), Huanglian (Rhizoma Coptidis, 4 liang), Shujiao (Semen Zanthoxyli, treated to release moisture), Danggui (Radix Angelicae Sinensis, each 1 liang), Xixin (Herba Asari), Renshen (Radix Ginseng), Fuzi (Radix Aconiti Lateralis Preparata, peeled and navel removed), Guizhi (Ramulus Cinnamomi, peeled), Huangbai (Cortex Phellodendri, each 1.5 liang).
Grind the above into powder. Soak Wumei flesh in wine overnight, remove pits, steam with cooked rice, and pound into a paste. Mix evenly with the medicinal powder to form pills the size of sesame seeds. Take 10 pills per dose, washed down with rice water after meals, three times daily. Avoid cold and raw foods.