06/15/2026
Gastroenteritis, or “stomach flu”
Due to the recent rise in cases of gastroenteritis I brought forward this health tip from 2/18.
In Kansas City and across the country, we’re currently seeing a small epidemic of gastroenteritis (GE), or what is commonly called “stomach flu.” It presents as 1-2 days of vomiting and diarrhea, then an additional 2-3 days of diarrhea. GE is usually caused by Rotavirus or Norovirus. (It is not caused by influenza for which the flu shot is given.)
Here are some tips for treatment and prevention that will hopefully help you and your family. If you contract GE and your problems are severe or lasting longer than expected, come to see me for further treatment.
1. Drink fluids to prevent dehydration.
I recommend ¼ strength Gatorade or full-strength Pedialyte oral intake as you are able to take in. These are iso-osmolar fluids that can move fluid and electrolytes into—rather than pull fluids out of—the inflamed bowel wall. Frequent, small amounts are helpful to prevent expanding the stomach, irritating it and provoking vomiting.
2. Eat a bland diet.
Once you are keeping fluids down, the diet can be advanced to the BRAT diet (B=bananas, R=rice, A=applesauce, T=toast, crackers, potatoes, other bland and very simple foods). Avoid dairy, caffeine and alcohol. Then increase your diet toward normal as you’re able. Infants who have GE can continue to breastfeed, but Pedialyte may be added.
3. Take over-the-counter medication as needed.
Pepto-Bismol or Emetrol are over-the-counter antiemetics that may help reduce vomiting. Pepcid or omeprazole (20 mg twice a day) cuts down acid production as the stomach is not emptying normally while you are ill.
A probiotic may be helpful for the diarrhea. Imodium is a double-edged sword. While it can decrease the frequency of diarrhea, it can prolong the duration.
Tylenol can be used for aches and pains associated with GE. Ibuprofen or naproxen can irritate the stomach and bowel.
4. Use good hygiene to stop the spread of germs.
If you have GE, wash your hands after using the restroom and try to avoid others while you are ill. If you are able, use a designated toilet in your house that others can avoid and disinfect it when you become well.
Prevention, as you know, is one of my favorite parts of medicine. Infants are vaccinated against the Rotavirus. If there are many cases of GE in your area, try to avoid sitting on “high-volume” toilets if able. Obviously, always wash your hands after using the restrooms and before eating. Use a paper towel to flush the toilet, turn off the faucet and open the door to exit the bathroom. Hand sanitizer can also be helpful.
You might want to save or print this health tip for you and your family since it can be valid in many circumstances throughout the year.
