Chicken Neijin has the function of invigorating the stomach and eliminating food and so on. Sand nut has the function of resolving dampness and opening the stomach (making the gastrointestinal function normal by eliminating dampness), warming the spleen and stopping diarrhea and so on. Both of them can treat gastric diseases, and they can be used for the non-disappearance of food stagnation (the food is indigested and stops accumulating in the stomach) and the deficiency of coldness in the spleen and stomach. 1. Chicken Neijin: the dried inner wall of the sand sac of the domestic chicken of the pheasant family, sweet in taste and flat in nature, belonging to the spleen, stomach, small intestine and bladder meridians, with the functions of strengthening the stomach and eliminating food, astringing the essence and stopping spermatorrhea (consolidating the essence and preventing spermatorrhea), and clearing the gonorrhea and dissolving the stone. This product can be used in treating food stagnation, vomiting, diarrhea and dysentery, pediatric chancre (a kind of chronic disease of children, manifesting as emaciation, abnormal diet, abdominal distension, thinning and yellowing of hair, etc.), dysuria, spermatorrhea, stonelike drenching (discharging sand and stones during urination, or sudden interruption of urination, pain in urethra, intolerable colic pain in the waist and abdomen), astringent pain, and biliousness and coercion (pain in the area of coercion and ribs). This product should be taken with caution for people with spleen deficiency and no accumulation, and its adverse effects are not clear. 2. Sand nut: dry mature fruit of ginger plant Yangchun sand, green shell sand or Hainan sand, taste pungent, warm, to the spleen, stomach, kidney meridian, with the dampness of the stomach, warming the spleen and stopping diarrhea, the efficacy of the qi to stabilize the fetus. This product can be used for dampness in the obstruction, epigastric rump without hunger, spleen and stomach cold, vomiting and diarrhea, pregnancy obstruction (early pregnancy, nausea and vomiting, dizziness and anorexia, or even food into the vomiting), fetal restlessness. This product should be used with caution in cases of Yin deficiency and blood dryness, and its adverse reactions are not yet clear. Both can treat gastric problems, specific medication is recommended to follow the doctor’s instructions, should not be self-medication.