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.
So when should you worry about cough? If it appears out of the blue and takes hold of you for a couple weeks â and you are not a smoker â or if post-cold coughing continues beyond three or four weeks. Officially, chronic cough is defined as cough lasting for at least eight weeks.