Stomach Bug (Viral Gastroenteritis)
What Is It?
The stomach bug, or viral gastroenteritis, is an infection that causes vomiting, diarrhea, and stomach pain. It is most often caused by viruses like norovirus or rotavirus and is highly contagious.
Common Symptoms
- Vomiting
- Diarrhea (loose, watery stools)
- Stomach pain or cramps
- Low-grade fever (under 102°F)
- Fatigue & fussiness
- Loss of appetite
- Dehydration (in severe cases)
Symptoms typically last 24–72 hours, but diarrhea may persist for up to a week.
How to Care for Your Child at Home
1. Keep Your Child Hydrated
Best Fluids for Hydration:
- Oral rehydration solutions (Pedialyte, Enfalyte).
- Breast milk or formula for infants (continue offering in small amounts).
- Water & diluted clear liquids (for older children).
Start Slow:
- Offer small sips (1-2 teaspoons every 5-10 minutes) to prevent vomiting.
- If tolerated, gradually increase the amount.
Avoid: Sugary drinks (juice, soda), dairy (milk), or sports drinks, as they can worsen diarrhea.
2. Rest the Stomach & Offer Gentle Foods
- After vomiting stops for a few hours, start with bland foods:
- Bananas, rice, applesauce, toast (BRAT diet)
- Plain crackers, dry cereal, or mashed potatoes
- Plain chicken or broth-based soup
Avoid: Greasy, spicy, or dairy-heavy foods until fully recovered.
3. Manage Fever & Discomfort
- If your child has a fever over 102°F or body aches, you may give:
- Acetaminophen (Tylenol) – for any age
- Ibuprofen (Motrin, Advil) – only if over 6 months old
Avoid aspirin (risk of Reye’s syndrome).
For safe dosing instructions based on your child’s weight and age, refer to our Pediatric Medication Dosage Chart.
Preventing the Spread
- Wash hands frequently with soap and water (especially after diaper changes).
- Disinfect surfaces (doorknobs, toys, bathroom areas).
- No daycare/school until symptoms resolve for at least 24 hours.
When to Call the Doctor
Seek medical help if your child has:
- Signs of dehydration:
- No wet diapers for 8+ hours
- No tears when crying
- Dry mouth or sunken eyes
- Persistent vomiting (more than 24 hours)
- Bloody diarrhea or vomit
- High fever:
- Over 100.4°F in infants under 3 months
- Over 102°F lasting more than 3 days
- Severe stomach pain or bloating
- Lethargy or difficulty waking up
Final Reassurance
Most stomach bugs go away on their own with rest and hydration. If you’re ever unsure, call your pediatrician for guidance. You can also explore our full Parent Resources section for additional tips on caring for sick children.