Make the Kitchen Off-Limits
Your child may like coloring at the kitchen table or banging on pots and pans, but you should encourage him to hang out somewhere else when he's sniffling. "The kitchen is one of the germiest rooms in the house," says Charles Gerba, PhD, a microbiologist who studies soil, water, and environmental sciences at the University of Arizona in Tucson. "Bacteria can survive on countertops and tables, so your child's germs could easily be transferred to your food and make everyone sick." At the very least, don't let him help himself to food in the refrigerator. People open the fridge door more often than any other one in the house, making the handle the perfect germ-swapping spot. Plus, bacteria breed there easily, since many people hang damp, food-spattered dish towels over the handle.