After a colostomy, stool is most often collected in a pouch that attaches to your body around the stoma. An adhesive skin barrier holds the pouch in place and keeps stool from leaking onto the skin. Most pouches are made of lightweight, odor-proof plastic. They lie flat against the body so they don't show or make noise.
You need to take care of your stoma and the skin around it (peristomal skin). That means keeping the stoma and the skin clean. It also means protecting the skin from moisture and contact with stool. This helps prevent skin problems and odor.