5. Altered voice
Just as the inflammation surrounding the through and voice box are able to cause a barking cough and wheezing, it can also, of course, have an impact on the voice. This might cause the voice to sound very hoarse and raspy, or it might result in a slightly high pitched escape of air during the certain speech.
One way to simulate this is to try looking directly up and back as far as you can. This will cause pressure on the throat and voice box, which will in turn cause it to narrow. If you now try to speak, you will notice that your voice comes out sounding a little different. This is also how croup cough can affect the voice.
The changes to the voice and to the breathing are sometimes described as causing a person to sound “like Darth Vader.” If you notice this, then you may well be experiencing someone with a case of Croup cough.