Topic Explanation
The forum topic is about a user's concern regarding the change in their wafer. They notice that the inside of the wafer next to their skin is turning white and puffing up, and they are unsure if this is normal or a cause for concern. They seek advice and insights from other ostomates about the changes in the wafer and its potential impact on leakage.

Advice and Insights
- Moisture, possibly from sweat or mucus from the stoma, can cause the wafer to puff up and change color.
- The moisture may disintegrate the adhesive, making it sticky and difficult to remove.
- Changing the wafer every 3-4 days is recommended to prevent potential leakage due to adhesive breakdown.
- Using a barrier strip around the wafer can provide additional protection against leaks.
- Testing the wafer's reaction in a dish of water can help determine its performance.
- The puffiness of the wafer may help seal it to the skin, potentially enhancing the barrier's efficiency.
- Some users cut away the puffiness to prevent waste from getting stuck underneath the wafer.
- Applying Stomahesive powder under the wafer can provide additional protection and aid in healing sensitive skin around the stoma.
- It's important to share personal experiences with different products to contribute to the knowledge base for other ostomates.

Conclusion
The forum discussion provides valuable insights and advice on managing wafer erosion and potential leakage concerns for ostomates.