My one year old daughter was prescribed this medication 4 days ago for an ear infection. I will never give her this medication again. Over the course of 4 days she developed worsening gastrointestinal symptoms similar to a stomach flu including diarrhea and vomiting. Today she projectile vomited all day long and was unable to keep down food or liquids. I called the pediatrician who informed us to cease using the medication immediately. Using Omnicef has been a horrible experience.