This is probably remedial for most of you folks but sometimes the basics get ignored. I believe any unprotected skin will get damaged. Unless I used some skin protectant like Cavilon barrier film any space between the wafer and the stoma would get damaged. Therefore, for me, there can be no space between the stoma and the wafer. That might not be easily accomplished by some of us, especially if the stoma circumference is irregular. Mine is a colostomy and I use Convatec moldable wafers after applying a skin barrier liquid film. I allow about an eighth of an inch (0.3 cm)all around and in a short time the moldable material closes in and actually turtlenecks the bottom of the stoma. That works very well for me but not all of us have similar situations. I just think it’s something very worth considering.