Child has a fever stomachache vomiting how to return a responsibility

The child has a fever and stomachache vomiting, which may be caused by gastrointestinal infection or food poisoning, but it cannot be ruled out that it is caused by acute gastroenteritis, dysentery, etc. To take the patient to the hospital for examination in time, if it is caused by acute gastroenteritis, it needs to be relieved with anti-inflammatory drugs under the guidance of a doctor.