Hey, I've had several nurses tell me multiple things to do, and judge that I'm not using this or that. But I do continuously have leakage. It can happen in the next 12 hours or in the next few days, or after 4-5 days. It varies because of how I put the bag on initially. But some key points I've learned were to make sure the bag is warm before application, use barrier strips if I remember to grab them, use a wet towel to cool down the skin right after the removal of the previous bag, cut the next bag right up to the stoma but leave a tiny bit of room for the stoma to flex, and use Maalox.
Once I take the previous bag off, I first put a paper towel down and wet it with water on my skin, to cool down anything that is red and inflamed, as well as take any sh*t off of the skin, so it's easier to rub off. I also don't eat or drink for quite a bit before a new bag is planned. The process can either be quick and dirty, or time-consuming because of how much time I may have without a bag on. "Quick and dirty" is usually more time with a bag on, and time-consuming I let the skin breathe, and just make sure a paper towel is covering the area for any spillage. The time-consuming side of replacing the bag is a longer process, I'd think because I'd rather have no bag on, hahaha (but that's just not gonna happen).
I use Maalox, or an antacid liquid you can get at a CVS, Walgreens, or such for the skin around my stoma. Sometimes it's so red and irritated that the liquid lights it on fire for a few seconds but it adds a layer of protection. Sometimes my stoma just ejects some kind of liquid when I think it's done, but the skin burns less once it is on. I found this trick from one of the RNs at my hospital I frequent because of infections and such. But the older nurses knew about this, not the younger ones!! They put this on and it calms the skin down, it adds a layer if you let it dry and the skin turns white. The "quick and dirty" process is quicker because I put this on, dab a little to not wait for it to dry, and then spritz some powder on for the crust (like you do), pat it on and make sure the area isn't too covered, and then the barrier wipes (if I remember sometimes). Make sure the bag is warm, and heat up a heating pad or hot pack, and once the bag is on, I make sure to keep it warm so the skin around the stoma stays pink through the bag. The heating pad I leave on for about a half hour, because sometimes my bags form tunnels after a while. The pinker the bag looks, the longer it lasts.
I've been asked if I use barrier rings, paste, or duoderm, and my stoma is not that raised above my skin to use those products, probably like yours, but my stoma is an oval or "eye shape."
Hope this helps!
Angie.