I was having trouble with the same issues. Called Hollister and they sent me samples of convex bags and thin barrier rings. Also, because my stoma is so close to my navel, it needed additional build-up. I get the Eakin cohesive part 839001 four-inch rings and cut approximately one-half inch around outside of the ring and cut that into four parts...each part is like a crescent. I put on my 2" ring around my stoma and then on the side that sloped towards my navel add a crescent piece from 4" ring beside 2" ring...then put on my bag (I'm using one-piece convex drainable ones now) and add a Hollister Adapt barrier extender on the navel side. I was staying raw and bleeding and itching; it was horrible...but this setup fixed it...bag kept leaking because it couldn't sit level because of closeness to navel. I also cut the remaining circle left from the four-inch ring in half to get two more crescents. When stoma area was really raw, I cleaned it, dried it, sprayed it with Flonase, gently patted excess off, let it air as long as I dared, sprinkled it with Adapt stoma powder, blew off excess with air from empty powder bottle and then reinstalled bag like I described above. Using this system, I don't have to wear a belt. Only had to use Flonase a few times....once I stopped the leakage from happening, I no longer burned and bled and itched....hope this will help you...it took me a while to figure it out but now it's like night and day as far as comfort. Makes it easier to live with the alien until reversal ...Celia1552