Acute gastroenteritis is one of the common diseases of the digestive system, and occurs more frequently in the summer and autumn seasons. During these seasons, the hot weather can lead to food spoilage. Additionally, people often like to eat cold drinks and use air conditioning, which can easily trigger acute gastroenteritis. It usually presents with symptoms such as intermittent abdominal pain, diarrhea, vomiting, and bloating, and sometimes symptoms like fever and chills may also appear. In such cases, examinations like routine blood tests, stool tests, and C-reactive protein tests can be conducted to determine whether it is infectious diarrhea or a gastrointestinal type of cold, and then targeted treatment can be applied. How long it will take to recover depends on specific symptoms and the patient's medical history among other factors. Generally, for a gastrointestinal cold, symptoms typically alleviate in about 2-3 days; for bacterial gastroenteritis, recovery might take a bit longer, generally about 3-5 days. If the patient is elderly, frail, or has underlying conditions such as chronic bronchitis, heart failure, or diabetes, the recovery might take slightly longer, but generally it can still be cured.