Fewer kids went to U.S. emergency departments for reactions related to over-the-counter cough and cold medicine after manufacturers printed new warnings on medicine bottles, says a new government study. But the researchers from the U.S. Centers for Disease Control and Prevention (CDC) say more can be done to prevent kids from accidentally taking cough and cold medicine. "Progress has been made, but there is still a lot of work to do to reduce adverse events from cough and cold medications," Dr. Lee Hampton, the study's lead author, said. He's a medical officer with the CDC in Atlanta.