What kind of Chinese medicines should be used to regulate an upset stomach?

Bad stomach may be caused by liver-stomach disharmony, insufficient stomach yin (insufficient yin fluid in the stomach), etc. You can take Chaihu Shu Liver Pills, Yin deficiency stomach pain granules and other Chinese medicines to regulate the condition under doctor’s guidance.
Chaihu Shu Liver Pill is composed of Poria cocos, Bran-fried Citrus aurantium, White peony in wine, Glycyrrhiza glabra, Cardamom, Vinegar Fragrant Parsley, Pericarpium Citri Reticulatae, Platycodon Grandiflorus, Ginger Hau Park and so on. It has the effect of soothing the liver and regulating qi, eliminating flatulence and relieving pain. It is used in treating chest and hypochondrium (chest and ribs) congestion, food stagnation, vomiting and acid vomiting caused by liver qi discomfort.
It is used for vague burning pain in the stomach and epigastrium caused by deficiency of stomach yin, dry mouth and tongue, dullness (no appetite, reduced food intake) and dry vomiting. Diet should be light, avoid alcohol and spicy, cold and greasy food.
If you feel unwell, it is recommended that you consult a doctor. If you need medication, you should go through a doctor’s diagnosis and follow the doctor’s instructions for standardized treatment.