Sometimes, croup can lead to a dangerously swollen throat and windpipe. In those cases, call 911 or go straight to the emergency department. And take your child to the doctor or call 911 if they also have any of the following:
- Shortness of breath
- Stridor (loud raspy breathing)
- Abnormal tiredness
- Changes in skin color (pale, purple, or blue)
- Fever over 102° F
And if a barking kid starts scratching or complaining of itching—or if redness or hives appear—call 911 immediately.