Children with diarrhea without signs of dehydration and mild dehydration can be treated at home, following the following four principles: 1. ④ fever (temperature >38℃ for infants <3 months, temperature >39℃ for toddlers 3-6 months); ⑤ obvious thirst, signs of dehydration found, such as sunken eye sockets, few tears, dry mucous membranes or reduced urine output, etc., mental changes, such as irritability, apathy, drowsiness, etc.; ⑥ blood in stool; ⑦ age <6 months, premature infants, history of chronic diseases or comorbidities. History of sexually transmitted diseases or comorbidities. <-->