Odor is what informs those around you that you have a problem with your bowel or bladder control. It causes a great deal of distress. This was also the case with patients with colostomies before good stoma appliances became available, which was about thirty to thirty-five years ago. Since the output could not be directly controlled, attention was turned to control of the odor. There were several ways in which odor was addressed – changes in diet and medication. The medications used were charcoal in various forms, which is still used commonly today, and a product that is seldom seen today, chlorophyllin.