Hello, I'm Dr. Roy Benorach. I'm a pediatrician in private practice in Roswell, Georgia, near Atlanta. My practice is named Pediatric Physicians, PC.Croup refers to a specific infection in the upper part of the airway, usually caused by a virus. It's most commonly seen in babies and young kids—adults can actually catch the same virus, but because their anatomy is bigger, they don't get the same croup symptoms. The main symptom is a cough that sounds weird and bark-like, kind of like a dog or seal. It's really quite different from an ordinary cough that kids get with a cold virus. Sometimes, people call any serious or hacky cough a "croupy" cough, but that's really not the right way to use that word. In addition to the cough, sometimes croup can also cause a breathing noise called stridor, which is kind of a high pitched inhaling noise. Kids with croup can also have a sore throat or a hoarse voice, and sometimes fever.The best home remedies include cool air—if it's winter, go outside. In the summer, steam from a shower can also help. Try to keep the child calm and distracted. If your child is having trouble breathing, contact your doctor, go to a hospital, or call 911.