This topic is about dealing with skin irritation and wafer adhesion issues for ostomy users living in extremely hot and humid climates. The poster is experiencing a painful rash under the wafer and is looking for ways to heal the skin and ensure the appliance stays secure. Here are some helpful suggestions:

1. Consider a fungal infection: It's a good idea to consult with an ostomy nurse or doctor to check for a fungal infection. If confirmed, they might recommend a prescription or over-the-counter antifungal treatment.

2. Keep the area dry and cool:
- Use a hair dryer on a cool setting before applying the wafer.
- Opt for lukewarm showers instead of hot ones.
- In very hot weather, consider changing the wafer every two days if you're sweating a lot.

3. Use protective powders and sprays: Lightly apply ostomy or stoma powder on the affected skin and dust off any excess before placing the wafer. Follow this with a medical adhesive spray on both the skin and wafer, allowing it to dry for five minutes.

4. Try barrier layering techniques:
- One method is to use a skin-prep pad, followed by an Eakins seal, and then the Hollister barrier.
- Another method involves applying a prescription cream, then stoma powder, followed by adhesive spray, small strips of DuoDerm tape around the stoma, and finally the wafer.

5. Milk of Magnesia method: Lightly coat the irritated area with Milk of Magnesia, let it dry completely, and then apply the wafer.

6. Use concentrated calamine lotion: Pour off the excess liquid from the bottle, dab a thin film around the stoma with a Q-tip, blow-dry until fully dry, and then apply the wafer. Keep a bottle in your regular supplies.

7. Keep fungicide on hand during the summer months to address early signs of rash or yeast growth.