This topic is about finding ways to prevent leaks for people with flush or side-facing stomas. A flush stoma is one that sits level with the skin, while a side-facing stoma points to the side. These types of stomas can sometimes cause issues with leaks, as waste might not flow directly into the pouch. To help with this, there are accessories like Flowassist and other spout-style collars designed to guide the output away from the skin and into the pouch more effectively.

Here are some helpful insights and advice:

1. An alternative product to consider is the Salts Healthcare "Dermacol" Stoma Collar. This product offers all-around protection and helps guide waste away from the barrier, which can be beneficial for healing issues like a prolapsed stoma.

2. The effectiveness of these products can vary:
- One user found the Dermacol/Flowassist (29 mm size) to be perfect, providing leak-proof wear when a little stoma paste was added around the base of the seal.
- Another user tried Flowassist a few times but did not have much success, indicating that results can differ from person to person.

3. Getting the correct size is crucial:
- It's a good idea to order samples first, as manufacturers often provide multiple sizes upon request.
- Salts Healthcare, for example, sent replacement sample sizes after an initial mis-sizing due to swelling or prolapse.

4. Regarding product construction:
- The spout or guard comes pre-attached to its own flange. The material is soft yet strong, ensuring it won't puncture the pouch.

5. Special stoma shapes and body changes can affect fit:
- Dermacol collars are round, which may not seal well on very oval stomas.
- Changes in weight, hernias, or sagging skin can alter the stoma's position. In such cases, custom solutions like DIY collars or assistance from prosthetic or model-making specialists might be necessary when standard collars don't fit properly.