Hi, I'm sorry to hear that you have this condition. I had a little white bump next to the stoma for years and used paste powder to cover it up. When I showed it to my gastro doctor, he wanted me to see a surgeon... but I didn't go and just managed the discomfort. An eaken seal might help cover up the area... or "duo derm," which is like skin, can cover a medicated wound and still allow you to put the wafer over the area.
I paid no attention to that "bump" until one day I opened my pouch to empty it, and it was all blood. I removed my wafer and found that that little blister had opened and was spraying blood. I was at a friend's house and her all-white bathroom was sprayed with my blood. I called my doctor, and he had me go to the emergency room and called in a surgeon. They were able to stop the bleeding by cauterizing it. But the doctor also identified it as "Pyoderma gangrenosum," which is actually ulcerative colitis on the skin. If you had UC, then that's a possibility. Best suggestion is to go to a surgeon to see what can be done. I'm a diabetic in addition, so it took a long time to heal. Since then, I've had about 4 more lesions on other parts of my body when the skin gets irritated. Instead of healing, the wound gets deeper. I've had one on my incision and another one from an irritation from the waistband of my pants. The worst one was at the outer edge under the wafer. I too had to cut the wafer away to allow the wound to heal. I currently have a wound that won't heal on my arm. If it was on my leg, they'd call it an ulcer and have me on bed rest. Ulcerative Colitis is an autoimmune condition, and although the main site may be removed (colon), it can pop up anywhere on the body. I hope this helped. Good luck and feel free to write back...
Best regards,
Marsha