There are likely to be other possible causes, so ask your doctor about your symptoms. 1  Diverticulosis. 2  Ischemic colitis. 3  Inflammatory bowel disease.  Colon 1  cancer. Intestinal worm infestation.  Mesenteric artery 1  ischemia. Proctitis.  Ulcerative colitis.
If you guessed about a week, you are average, but you are wrong. In a new study, doctors who reviewed medical studies found that acute cough, sometimes called acute bronchitis, lasts an average of nearly 18 days.
Researchers at the University of Georgia analyzed the results of 19 studies on acute coughs (i.e. acute bronchitis or the common cold) and found quite a discrepancy between when you think symptoms fade (7 to 9 days), and when they actually fade: 17.8 days.