An especially nasty strain of norovirus is spreading like wildfire this year, causing vomiting, diarrhea and stomach cramps.

It’s bad when you get it yourself, and even worse when your children have it.

Here’s what to do if your kids come down with norovirus:

Most importantly, push fluids — breast milk, formula or a re-hydration solution like Pedialyte for babies, and Pedialyte or water for toddlers.

Older kids can sip on sports drinks like Gatorade.

Reintroduce foods carefully. Try things like popsicles and Jello. Then crackers, bread, pasta, rice and pretzels.

Call the doctor if your child shows signs of dehydration.