It is a special drug, which is a live bacterium of Bacillus licheniformis, and has an antibacterial effect after entering the intestine, antagonizing pathogenic bacteria such as Staphylococcus as well as yeast-like bacteria. However, it has a growth-promoting effect on beneficial enterobacteria such as Bifidobacterium, Lactobacillus, and Streptococcus digestive tract. Therefore, it can adjust the intestinal flora and can treat acute gastroenteritis and, at the same time, can treat chronic intestinal flora imbalance. Generally cool water sent down, more than 40 ℃ above the hot water, the whole intestinal life will lose its effect, because then the live bacteria scalded to death. It should be noted that the whole intestine is swallowed, can not open the capsule, the capsule can play a role in the protection of live bacteria. In addition, can not be used together with antibiotics, antibiotics with it, can appear antagonistic effect, the bacteria will be killed, because the whole intestine is a live bacteria.