Symptomatic treatment of diarrhea, vomiting and fever can be carried out with levofloxacin hydrochloride capsules, montelukast bulking, acetaminophen tablets and oral rehydration salt solution. As a broad-spectrum antibiotic, levofloxacin hydrochloride capsules have anti-inflammatory and bactericidal effects on a variety of gastrointestinal pathogenic bacteria. Combined treatment with montelukast and acetaminophen tablets can alleviate many discomfort symptoms caused by the disease, such as fever, fatigue, abdominal pain, nausea and vomiting. Oral rehydration salt solution, as a water-electrolyte balance regulator, can quickly replenish a large amount of water-electrolyte loss in the body and prevent serious secondary illnesses such as water-electrolyte disorders and dehydration. It is recommended to go to the hospital for a face-to-face consultation and examination before symptomatic treatment.