There is no such medication as Yi Stomach Pill in the clinic, it may be Yi Stomach Cream. The difference between Yi Stomach Cream and Er Zhi Wan is mainly the difference in the composition of the medication, its efficacy and main treatment, and precautions and so on. 1. drug composition: the stomach cream mainly consists of white peony, Chen Pi, wood, Wu Yao, dandelion, red vine, licorice composition. Erzhi Pill is mainly composed of chasteberry and lotus seed. 2. Efficacy and Indications: The stomach balm has the effect of harmonizing the stomach and easing the urgency, regulating qi and relieving pain, and can be used in the treatment of chronic gastritis and other diseases. Er Zhi Wan has the effect of tonifying the liver and kidney, nourishing yin and stopping bleeding, and can be used in the treatment of yin deficiency of the liver and kidney, dizziness, tinnitus, dry throat and nose, lumbar and knee pain, and heavy menstruation. 3. Precautions: It should be noted that the medicine is not suitable for Yin deficiency of the spleen and stomach, which is mainly manifested as dry mouth, red tongue with little fluid and dry stool. Erzhi Pill should be used in the use of attention to cold and fever patients should not be taken. If you need to use Yi Stomach Pill and Er Zhi Pill, it is recommended to go to a regular hospital, under the guidance of a professional physician to identify the symptoms of the treatment.