This topic is about dealing with pressure sores that have developed beneath the adhesive of a Sensura Mio Concave wafer, which is part of a colostomy pouching system. The person experiencing this issue is concerned about the risk of infection, especially during a severe flare-up of their condition. Here are some helpful insights and advice shared by others:

1. To treat the sore spots before applying a new wafer, use ostomy paste. Dab it onto the lesions with a Q-tip, let it dry completely, and then apply the appliance.

2. When changing the pouch, make sure to clean the skin thoroughly and allow it to air-dry for as long as possible before reapplying. Persistent issues might be due to sensitivity to the adhesive rather than the output itself.

3. It's important to seek prompt medical attention from a surgeon, GP, or stoma nurse, as the presence of pus indicates an infection that could worsen quickly.

4. Consider switching away from convex or concave systems if they are causing pressure. Some people have reported bruising and painful skin when using convex wafers.

5. If you use a support belt, ensure it is not too tight, as excessive pressure can aggravate or create sores.

6. During flare-ups, some find that a bland, low-residue diet can be helpful. This might include foods like plain pasta, potatoes without gravy, unsweetened oatmeal, and baked chicken, alongside any prescribed medications.