Patients with acute gastroenteritis usually improve significantly after 2-3 days with active treatment and recover completely in about 5-7 days. Acute gastroenteritis, also known as infectious diarrhea, is usually caused by infection of the stomach, intestines and other digestive tissues with bacteria, viruses or parasites. Typical symptoms of patients include fever, malaise, abdominal pain, diarrhea, nausea, vomiting, etc. For patients with acute gastroenteritis, serological tests and stool cultures can be used to identify the specific types of sensitive bacteria before using targeted antimicrobials for anti-infection and symptomatic treatment. Under normal circumstances, most patients will improve significantly in 2-3 days after treatment and will be cured in about 5-7 days. During the treatment of acute gastroenteritis, patients should try to choose more liquid and light foods to reduce the burden of the gastrointestinal tract function, while also playing a role in replenishing electrolytes and preventing the occurrence of dehydration symptoms.