Hum. Never heard of that one?? Can I ask why you want to cough so bad? Swallowing cough syrup always got me coughing!!

why.... would you want to do that?

answer - no

as a matter of fact, it is.

But why anyone would want to do that intentionally i dont know.

Now people who have issues like, emphysema or upper respiratory infections can and will have what are commonly called "coughing fits" because of an inflammation of the airways of the lungs.

i was assuming it for the average person and that the cough would kill you

Making youself cough...maybe. Not being able to stop because there is an actual physical condition...maybe that too. I've kept coughing and thrown up from coughing too much. My kids have too. Coughing can agitate the stomach, so of course stuff is going to end up coming up eventually.

You can have a chronic, persistent cough. A cough that is accompanied by mucus can indeed make you feel sick to your stomach due to the mucus going down your throat and entering the stomach. Any cough that is persistent warrants further investigation with the doctor. Allergies can be the cause of a chronic, persistent cough.