Symptoms Symptoms can include a harsh , dry hacking/coughing , retching , sneezing , snorting , gagging or vomiting in response to light pressing of the trachea or after excitement or exercise .

Symptoms Symptoms can include a harsh , dry coughing , retching , sneezing , snorting , gagging or vomiting in response to light pressing of the trachea or after excitement or exercise .
