This topic is about finding a solution when a flat ostomy wafer isn't providing the necessary support, leading to leaks and skin irritation around the stoma. The goal is to convert a flat wafer into a convex one to help the stoma protrude properly and prevent these issues. Here are some helpful tips and insights:

1. Instead of trying to modify a flat wafer yourself, consider requesting pre-shaped convex products directly from manufacturers. Many companies offer free samples, which can be a great way to find the right fit for you.
- Contact the manufacturer of your current brand to ask for convex flange samples.
- Hollister, for example, provides free samples of their oval or round convex seals.

2. Ready-made convex flanges, like those from ConvaTec, are specifically designed to apply the necessary outward pressure. To improve the seal, you can fill any small gaps with ostomy paste.

3. If you prefer to adapt a flat system, you can try layering techniques. Place a stoma seal, such as an Eakin Cohesive Seal, under the wafer to create mild convexity and protect your skin. Adding paste around the edge before applying the wafer can offer additional security.

4. Keep in mind that homemade solutions might not always provide the best adhesion. Switching to purpose-built convex products is generally more reliable for preventing leaks and skin irritation.