First, acute gastroenteritis is an acute inflammation of the gastrointestinal mucosa tissue, most cases are unhygienic diet, or accidentally consumed spoiled food caused by acute gastroenteritis will cause diarrhea, bloating, watery stools, nausea, vomiting, fever and other symptoms. You can take Bifidobacterium Similimum, along with fever when you need to take antibiotics. Second, enteritis, enteritis is an inflammation of the mucosal tissues of the colon and small intestine, which can cause digestive symptoms such as bloating, diarrhea, watery stools and mucus stools. Commonly used drugs for enteritis are enteritis, atropine, belladonna combination, and probenecid, etc., which need to be taken under the guidance of a physician.