A croupy cough is when your child has a tight, "barking" cough and usually a hoarse voice.
Stridor is when your child breathes in, you hear a harsh, raspy sound. This happens with severe croup.
Croup is a viral infection of the vocal cords. Stridor occurs as the opening between the cords becomes more narrow.
First Aid for Attacks of Stridor With Croup
Home Care for a Croupy Cough Without Stridor