If anyone is having trouble with skin irritation and breakdown with their ostomy, this is absolutely a lifesaver. I had severe skin breakdown over an 8-year period because my hospital stoma nurse never told me I needed to keep seeing a stoma nurse and never told me I needed to get my stoma remeasured after swelling went down. I wore a 1-1/2 inch wafer hole for 8 years and thought it was normal. I went and saw my gastroenterologist, and he immediately made me an emergency appointment with the stoma nurse he works with. My new stoma size is a 22mm hole. The stoma nurse prescribed me Marathon, and it got the irritation under control within a week. Just make sure you clean it really well and dry it well, and don't use any powder, barrier spray, or wipe, or the Marathon won't stick because it sticks directly to your skin only. You need a prescription for it because it's potent, but it's 5x thicker than regular barrier spray, and each application lasts 2-3 days. Just break the vial like a glow stick, apply with the applicator, and let it dry before putting your seal and bag on. Hope this helps.