From the Front Lines with Dr. Troy Madsen - The Scope Radio

According to pediatrician Dr. Cindy Gellner, a child coughing until they puke is actually pretty common. Children—especially those under 12 months of age—have a very sensitive gag reflex. But if vomiting after coughing happens too often, it could be a sign of something more serious. Learn the signs to watch out for the next time your child coughs.