Gastroenteritis is treatable with amoxicillin. Amoxicillin is a common antibiotic drug that has anti-inflammatory and antiseptic effects and is used in a number of diseases. The majority of gastroenteritis cases are caused by bacterial infections of the intestinal system. The common bacteria include Vibrio haemolyticus, Escherichia coli and Staphylococcus aureus, and since amoxicillin has a broad-spectrum bactericidal effect, it can kill harmful bacteria and thus cure gastroenteritis. However, there are more causes of gastroenteritis, and some of the patients have nothing to do with bacterial infection, but are caused by cold in the abdomen and accumulation of food. These patients do not have bacteria in their digestive system, and the use of amoxicillin is not therapeutic. Instead, the abuse of antibiotics can lead to an imbalance in the intestinal flora, which is not conducive to the recovery of intestinal function. In case of gastroenteritis you should try to go to the hospital for routine stool examination and choose sensitive drugs according to the infected bacteria to avoid the situation of drug abuse.