11/08/2025
Viral Gastroenteritis in Kids (AKA "Stomach Flu") – What Parents Should Know
Vomiting in children can be caused by a range of illnesses — some serious and requiring prompt medical attention. Thankfully, most episodes are due to self-limited infections like viral gastroenteritis, upper respiratory infections, or strep throat.
Stomach flu (not actually the flu!) is one of the most common culprits. It often starts suddenly — usually in the middle of the night — with repeated vomiting. While the vomiting typically improves after several hours, it can come back over the next few days, especially if fluids or solid foods are reintroduced too quickly. That’s because the digestive tract remains inflamed and isn’t quite ready to handle a full diet.
Key points for parents:
Dehydration is the main concern, but it’s uncommon in otherwise healthy children sick for less than 48 hours.
Adjusting the diet temporarily can help the gut recover faster and prevent dehydration.
Pedialyte is ideal for kids who are already dehydrated.
For prevention or mild illness, diluted apple juice, clear fruit juices, or even sports drinks (like Gatorade — avoid red flavors!) can help keep fluids up. While not perfectly balanced, their taste may help kids drink more.
Small, frequent sips are better tolerated than large amounts all at once.
Medications are rarely needed, though anti-nausea prescriptions may be helpful in certain cases, once other causes of vomiting are ruled out.
If diarrhea follows, it may linger 1–2 weeks, but usually improves (less frequent, more formed stools) within the first 5–7 days.
Remember — stomach flu is always making the rounds and never any fun, but most kids bounce back quickly with a little TLC, rest, and hydration.
It’s that time of year again when many kids are afflicted with vomiting and diarrhea.