Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/15/2025

Management of Fever and Vomiting in Children

Initial Management

  • For a child with fever and vomiting, appropriate management includes oral rehydration therapy with small, frequent volumes, acetaminophen for fever control, and continued age-appropriate diet once rehydration is achieved, as recommended by the Centers for Disease Control and Prevention (CDC) 1, 2

Fluid Management

  • Oral rehydration should begin with small, frequent volumes (e.g., 5 mL every minute) using a spoon or syringe under close supervision, and gradually increase the amount as tolerated, according to the CDC 1
  • Replace ongoing fluid losses from vomiting with appropriate volumes of oral rehydration solution, as suggested by the Infectious Diseases Society of America (IDSA) 3

Fever Management

  • Avoid aspirin in children under 16 years of age due to risk of Reye's syndrome, as advised by the American Academy of Pediatrics (AAP) 2, 4

Dietary Recommendations

  • Once rehydration is achieved, resume age-appropriate diet immediately, including starches, cereals, yogurt, fruits, and vegetables, and avoid foods high in simple sugars and fats, as recommended by the CDC 1, 3

Antiemetic Considerations

  • Antiemetics are not routinely recommended for children under 4 years of age, but ondansetron may be considered in older children (>4 years) to facilitate oral rehydration when vomiting is persistent, according to the IDSA 3, 5

When to Seek Further Medical Care

  • Indicators for referral to hospital include signs of respiratory distress, cyanosis, severe dehydration, altered consciousness, prolonged vomiting (>24 hours), drowsiness, and signs of septicemia, as indicated by the AAP and IDSA 2, 3, 4, 5, 6

Important Cautions

  • Antimotility drugs (e.g., loperamide) should NOT be given to children under 18 years of age with acute diarrhea, and antibiotics are not routinely indicated unless there are specific indications, as advised by the IDSA 1, 3, 5