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.
Also, it's possible that you had a cold and now allergies are responsible for the inflamed airways and coughing. Although the cough after bronchitis can last for 3 months, contact your doctor if the cough is not getting better after another couple weeks. Depending on the circumstances, I often order a chest x-ray when a person has a cough for more than 6 weeks. Helpful? 1 person found this helpful.