When your child suddenly complains of a tummy ache—then quickly follows it with vomiting or diarrhea—it’s often a sign of stomach flu, also known as viral gastroenteritis. And while it’s a common illness, it can hit fast and hard, leaving many parents unsure how to handle it.
At Indian Crest Pediatrics, we frequently care for kids experiencing stomach flu, especially during the colder months when viral infections tend to spread more easily. The good news? Most cases are short-lived and manageable at home. Still, knowing when to treat it yourself and when to call the doctor can make all the difference in your child’s recovery.
In this guide, we’ll break down the key symptoms, at-home care tips, and warning signs that it’s time to seek medical help.
What is the Stomach Flu?
Despite the name, the stomach flu isn’t caused by the influenza virus. It’s typically the result of a viral infection that inflames the stomach and intestines, most commonly caused by:
- Norovirus (a leading cause of outbreaks in schools and childcare centers)
- Rotavirus (especially in younger children)
- Adenovirus or other enteric viruses
These viruses are extremely contagious and usually spread through:
- Contact with contaminated surfaces
- Close contact with someone who’s infected
- Eating or drinking contaminated food or water
Common Symptoms of Stomach Flu in Kids
Symptoms usually begin 1–2 days after exposure and can last anywhere from 24 hours to several days. The most common include:
- Vomiting (often the first symptom)
- Watery diarrhea
- Fever and chills
- Stomach cramps
- Headache or muscle aches
- Fatigue and irritability
Because vomiting and diarrhea can cause fluid loss, dehydration is the biggest concern, especially in infants and toddlers. Watch for signs like dry lips, sunken eyes, and reduced urination.
For a deeper look at dehydration, read our post on dehydration in children: signs, treatment & prevention.
How to Treat Stomach Flu at Home
Most cases of stomach flu don’t require prescription medication. Supportive care is the best approach until the virus runs its course.
1. Hydrate First
- Give small sips of water, oral rehydration solutions like Pedialyte, or clear broths.
- Avoid sugary juices or sodas, which can make diarrhea worse.
- If your child refuses fluids, try giving a spoonful or ice chip every few minutes.
2. Rest Is Key
- Keep your child home from daycare or school
- Encourage naps and quiet play while their body recovers
3. Ease Back Into Food
- Once vomiting stops, try bland foods like crackers, bananas, rice, toast, or applesauce (aka the BRAT diet)
- Avoid dairy, greasy foods, or anything too rich for a few days
Want more tips on feeding during illness? Our guide on childhood nutrition tips offers helpful insights.
When to Call the Doctor
While most cases resolve on their own, there are times when medical care is needed. Call your pediatrician if your child:
- Is younger than 6 months and has diarrhea or vomiting
- Shows signs of dehydration (no wet diaper in 8 hours, dry mouth, sunken fontanelle)
- Has a high fever (over 102°F) for more than 2 days
- Has blood in their vomit or stool
- Is extremely drowsy, hard to wake, or unusually irritable
- Can’t keep any fluids down for more than 8 hours
We’ll evaluate whether your child needs additional care, testing, or treatment for complications like bacterial infections or inflammatory bowel disease, which can sometimes mimic viral symptoms.
Preventing the Stomach Flu
While you can’t prevent every illness, these strategies help reduce the risk of stomach flu spreading in your household:
- Teach proper handwashing with soap and warm water
- Disinfect shared surfaces and toys regularly
- Keep sick children home until symptoms are gone for at least 24 hours
- Wash fruits and veggies thoroughly
- Avoid sharing cups, utensils, and towels
Also consider ensuring your child stays on top of their well-child exams to monitor immune health and development year-round.
Final Thoughts
The stomach flu is no fun—for kids or parents—but it’s usually short-lived and treatable at home with hydration and rest. The key is staying alert to signs of dehydration or worsening symptoms and reaching out if you’re unsure what to do.
At Indian Crest Pediatrics, our team is here to support your child’s health through every stage of growth—from everyday tummy troubles to complex digestive concerns. If your child is battling stomach flu symptoms or just not feeling like themselves.
Visit us today to learn more or request an appointment. We’re proud to care for families in Arvada and surrounding communities with trusted, compassionate pediatric care.