Intestinal bacterial infections are more commonly caused by acute inflammatory changes in gastrointestinal flora dysbiosis due to improper diet, resulting in the accidental ingestion of qualitatively altered food containing pathogenic bacteria, or over-eating irritating food. Salmonella is the main causative agent of intestinal bacterial infections. Patients will develop gastrointestinal mucosa congestion, edema, exudation, erosion, bleeding, and clinical manifestations such as nausea, vomiting, abdominal pain, diarrhea, and fever. If left untreated, it may lead to toxic enteritis, ulcerative enteritis, and intestinal obstruction, among others. Repeated, chronic inflammatory stimulation also has the risk of cancer, which should be taken seriously and treated actively. Patients should rest in bed, eat light, warm, soft, easily digestible liquid or semi-liquid food, avoid spicy and irritating food, and give control of internal and external gastrointestinal infections, gastrointestinal mucosal protective agents and microecological preparations according to the condition. In case of bacterial infection, antibacterial and anti-inflammatory agents such as flavopiridol and haloperidol can be used orally, and montelukast can be given to protect the gastrointestinal mucosa, while micro-ecological agents such as Jin Shuangqi and Rectified Intestine can be given to regulate the intestinal flora and inhibit the growth of harmful intestinal bacteria to stop diarrhea.