To regulate the stomach and intestines, you can use medicines with the effect of strengthening the spleen and stomach, such as Jin Nei Jin (鸡内金), Malt (麦芽), and Bao He Wan (保和丸).
1. Jin Nei Jin (鸡内金), which is flat in nature and sweet in taste, belongs to the bladder meridian, small intestine meridian, spleen meridian and stomach meridian, and its main effects are to dissolve stones and clear the flow of water, strengthen the stomach and eliminate food, stop the loss of sperm and astringe the essence, which can be used for gastrointestinal discomforts, such as regurgitation, accumulation of food (food that is indigestible and stops accumulating in the stomach), and vomiting.
2. Malt, which is flat in nature and sweet in taste, belongs to the stomach and spleen meridians. Its main effects are to stimulate the stomach, strengthen the spleen, eliminate food and promote the flow of Qi, and can be used for gastrointestinal discomforts such as bloating and fullness of the abdomen, and accumulation of food that does not dissolve.
3. Baohe Pill is effective in harmonizing the stomach and regulating qi, resolving food stagnation and eliminating food stagnation, and can be used for food accumulation, which often manifests as distension and pain in the epigastrium and abdomen, belching and rancid plumpness (stomach distension and discomfort), acid swallowing (swallowing of acid in the stomach upwardly to the oropharynx), or not wanting to eat or drink and other discomforts.
The use of Chinese herbal medicines and proprietary Chinese medicines should be guided by a medical practitioner, and if there is any discomfort, it is recommended to go to a medical institution in time.