When your child breathes in, you hear a harsh, raspy sound. AUSE roup is a viral infection of the vocal cords.
Stridor occurs as the opening between the cords becomes more narrow.
Warm moist air seems to work best to relax the vocal cords and break the stridor. Take your child into a foggy bathroom. Have a warm shower running with the bathroom door closed. If your child continues to have stridor despite the mist treatment, call 911. Dry air usually makes coughs worse.