SC Wheezing Wheezing Chapter 19. Children's Health Problems Wheezing is a high purring or whistling sound. You hear it more on breathing out than in.
Air flowing through swollen or tight breathing tubes usually causes wheezing.
Wheezing sounds like other problems. Croup sounds like wheezing. A high cough goes with croup. A stuffed nose makes a snorting sound. Mucus in the windpipe makes a rattling sound.