I'm a fan of zinc oxide, just plain out cheap zinc oxide. It's in a lot of products to protect your skin. It's white and thick, just put it on to dry skin every time you change your dressing. My dressings are all washable and reuseable.
Right now with my valve being dilated and going through Interventional Radiology to get the catheter in because of a stricture right before the valve. It is weeping from irritation, so I change the dressing a lot more. I use washable nursing pads, cut up T-shirts into the size I want....all washable to save money, and no tape. My underwear hold the dressing in place. It's very important to try to keep your skin around the stoma as healthy as possible. Then I use something that moisture won't pass through over the dressing so my clothes don't get wet. You can buy inserts for pet bands that work as the cover. They have an absorbent side and the back side is water proof. So it works. Or use anything you can think of, to cover the dressing to hold in the moisture, if needed. Sometimes, we have to use our imagination.