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).

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.

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