The topic is about dealing with a sore that has developed beneath the stoma wafer. This can happen if the wafer isn't applied properly, leading to skin irritation. Here are some helpful tips to promote healing:

1. Crusting Method:
- Lightly sprinkle ostomy or stoma powder over the sore area.
- Dab the area with a liquid skin-barrier film, like 3M Cavilon, and let it dry.
- Repeat this process to create 2-3 layers.
- If the sore is very dry, start with the barrier film before applying the powder.
- This method helps protect the sore from stoma output and aids in healing while allowing the wafer to stick properly.

2. Use of Aquacel Ag:
- Use Aquacel Ag Hydrofiber dressing, which comes in a ¾-inch strip tape.
- Cut the dressing to fit the size of the sore. If the sore is deep, you can loosely fill it with the dressing before covering it with the wafer.
- The dressing can stay under the flange without affecting how well it sticks.
- Change the pouch and dressing daily or every other day until the sore heals. Be prepared to use extra supplies during this healing period.