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Guizhi Lingzao Tang (Cinnamon Twig and Poria Decoction): Treats vomiting and diarrhea caused by dampness invading the stomach and intestines.
Ingredients: Atractylodis Macrocephalae Rhizoma, Poria, Alismatis Rhizoma, Magnoliae Officinalis Cortex, Polyporus, Citri Reticulatae Pericarpium, Glycyrrhizae Radix et Rhizoma (stir-fried, equal parts), Cinnamomi Ramulus (a small amount).
Usage: Grind the above ingredients into fine powder. Take two qian per dose, mixed with a decoction of fresh ginger, Juncus effusus, and Citri Reticulatae Pericarpium. If vomiting and diarrhea are due to food stagnation, accompanied by scanty urination, abdominal distension and pain, use this formula to separate and drain dampness. Subsequently, use Liujunzi Tang (Six Gentlemen Decoction) to regulate and tonify the spleen and stomach.

Banli San (Half-Millet Powder): Treats vomiting and diarrhea due to deficiency-cold of the spleen and stomach in children, as well as cold-phlegm.
Ingredients: Pinelliae Rhizoma (soaked in water, sliced, dried, 1 liang), Setaria Italica (3 fen, aged Oryzae Fructus Glutinosus is also acceptable).
Usage: Cut the herbs into small pieces. Take 3 qian per dose, boil with 1.5 large cups of water and 10 slices of fresh ginger until reduced to 0.8 cup, take warm before meals.

Baifu Wan (White Head Pill): Treats phlegm-saliva.

Qian Yi stated: Vomiting and diarrhea with undigested milk indicate food injury; purgation is appropriate. The son of Feng Chengwu, aged five, suffered from vomiting, diarrhea, high fever, and anorexia. Qian Yi observed that the child had less black iris and more white sclera, with a pale complexion, stating that this child would likely suffer from frequent illnesses. A pale complexion indicates deficient spirit; less black iris indicates kidney deficiency. Since the black iris corresponds to Water, inherent weakness and deficiency lead to frequent illness. Even if he grows up, his muscles will not be robust, he will not tolerate cold or heat, his condition will easily shift between deficiency and excess, and his spleen and stomach will also be weak. He must not indulge in alcohol; without proper care, he will not reach middle age. A face lacking spiritual luster resembles blood loss in women. Current symptoms of vomiting, diarrhea, anorexia, and high fever indicate food injury. Furthermore, those with deficiency and timidity should not be purged; purging causes pathogenic factors to enter the Lung causing cough, the Heart causing palpitations/fright, the Spleen causing diarrhea, and the Kidney exacerbating deficiency. It is better to use Xiaoji Wan (Accumulation-Dissolving Pill) to grind down accumulation, as there is only slight food retention. If the injury is severe, purgation can be used; otherwise, it may develop into a mass (Pi Ji). If solid food remains internally, purgation is also applicable. After purgation, tonifying the Spleen ensures recovery. Following deficiency and excess patterns, efficacy is guaranteed. [Zeng] Qian Yi said: Vomiting milk with yellow stool indicates hot milk injury; vomiting milk with green stool indicates cold milk injury. Both require purgation, which is the method of "attacking and seizing." However, for hot injury, Wuling San (Five-Ingredient Powder with Poria) is used to guide rebellious qi downward; for cold injury, Lizhong Tang (Regulate the Middle Decoction) is used to warm the middle jiao, leading to natural recovery. If spleen meridian stagnation persists and is re-injured by diet, resulting in alternating vomiting and diarrhea, Sanleng San (Curcuma Powder) should be used to resolve accumulation, and Shouwei San (Stomach-Guarding Powder) to harmonize the stomach.
[Zhu Danxi] Children's vomiting and diarrhea with jaundice.
Ingredients: Curcumae Longae Rhizoma, Curcumae Phaeocaulis Rhizoma, Citri Reticulatae Pericarpium, Citri Unshiu Pericarpium, Massae Fermentatae Medicamentosa, Hordei Fructus Germinatus, Coptidis Rhizoma, Glycyrrhizae Radix et Rhizoma, Atractylodis Macrocephalae Rhizoma, Poria.
Usage: Grind into fine powder. Take with a decoction of fresh ginger and Juncus effusus. Add Crataegi Fructus for milk/food injury vomiting/diarrhea. Add Talcum for epidemic vomiting/diarrhea. Add Menthae Haplocalycis Herba for fever.

Xiaoji Wan (Accumulation-Dissolving Pill): Treats children's vomiting and diarrhea with sour-smelling stool.
Ingredients: Caryophylli Flos (9 units), Amomi Fructus Rotundus (12 units), Crotonis Fructus (2 units), Pruni Mume Carnis (2 units).
Usage: Grind into powder, make pills with wheat paste, size of mung beans. Take with warm water.