Well granulomas are quite difficult and will likely require the stoma nurse applying a silver nitrate stick to it. She will teach you how to do it because you will need to apply it yourself when you do a bag change.
So this will cause them to shrink, so be sure to bring your ostomy supplies with you and don't eat or drink anything hours beforehand so the stoma will quit spewing.
For energy I recommend drinking a glass of whey isolate protein powder mixed in lactose free milk as it packs so much protein and very gentle on your system. So this way you can cut down on the solid foods quite a bit and not much will spew out of the stoma.
What I do to insulate my one graneomola is use the wafer cut out piece cut into strips and applied around the outer edge of my convex wafer bubble. This way the wafer never comes into very hard contact with it.
Then I use a pectin based alcohol free paste and that cushions the area without pressure unlike what a ring does. So if the granulomas are not irritated, they may shrink down quite a bit and really not be much of a bother. That's how I solved my issue.
I don't use a belt, that just makes things worse, instead I center apply barrier strips over the belt hooks and hard plastic then press and stretch out the barrier strips on either side before applying to the skin. This creates a downward pressure that keeps the water perfectly in place.
Keeping the water perfectly in place is important because the paste doesn't get hard, it remains flexible so it's an ideal cushion. So if they gradually shrink, the paste sticking to it will hopefully shrink with it and maintain the seal.
I don't recommend notching out the wafer if it can all be helped, replacing with height and paste (alcohol free) should be used preferably. I think you can go about a 1/4" with the paste or so max before it starts dripping down.
What I do is use oil free eye makeup remover to remove my wafer, dry wipe the stoma area of output then soak the skin around the stoma with the eye makeup remover. It moisturizers the deep skin and removes the fine films of whatever you applied.
Wash the area three times with an ivory like non moisturizing soap and rub your fingers at the stoma, the skin should squeak. Then you know it's really clean. Appy nothing and dry well, including the stoma and the little crack going around. Stoma powder, a very light coating if you need it on wounds followed by spray skin protectant if you need it, let it dry 60 seconds instead of 30 like they say.
Squeeze the paste into the dry stoma crack going around to force it in there and another ring of paste around that. If the paste does not immediately stick to the skin when you apply it from the tube under slight pressure, your not getting good adhesion. You might have to start over if it just falls off when standing. This way you know before you waste a bag.
Then apply your wafer with the higher pieces applied. Unfortunately the thicker the paste is, the longer you need to remain flat on your back while the paste sets up some which it does to a small degree. Jumping up right away can cause thick paste to drip out or down from the top over your wafer hole.
Paste is a little more trickier to use but it has it's benefits especially with uneven skin issues. Usually only a thin layer is applied but your trying to cushion your graneomolas so it takes a bit more adapting.
The eye makeup remover and ivory soap step is important because although the wafer has adhesive bonding to the paste, the skin does not. So to prevent as much dripping out of the paste as possible a dam good adhesion to the skin helps out considerably. In fact I have to use a flat edge of a butter knife to scrape off old paste it's stuck to the skin so well.
Over time you reduce the height of the paste as the granulomas shrink down. And don't touch or rub the area through the wafer, that just irritates them.
See how that works for you.
