Colds are caused by viruses, easily passed by person-to-person contact.
"Someone with a cold rubs his or her nose then touches your hand," says Jack M. Gwaltney Jr., M.D., an epidemiologist. "As soon as you touch your nose or wipe your eyes, you're infected."
Because cold viruses enter the body through the nose, mouth and eyes, you can protect your child most effectively by keeping his or her hands away from those areas. These preventive measures also help:Find out more ways to protect yourself from a cold ›