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.
1 Duration: Colds donât usually last longer than 5 to 7 days, but allergies can last as long as youâre exposed to the thing youâre allergic to, the allergen. 2  Onset of Symptoms: Cold viruses take about three days (from the time of infection) to cause symptoms.