One and a half years old baby vomiting diarrhea fever lethargy how to return a responsibility

One and a half years old baby vomiting diarrhea, fever accompanied by lethargy and other symptoms, usually caused by infectious diseases, clinically more common in viral cold. Appear lethargy symptoms, need to consider whether to trigger viral meningitis caused symptoms. Suggestions: parents need to take the child to the hospital pediatrics in time, symptomatic treatment.