Hi Mercutio...I can imagine how frustrating this issue is for you, especially with a little one that no doubt likes to pick at anything causing her distress (especially itching). First off, she may have some allergy to the chemicals in the adhesives, including the Cavilon barrier product. Maybe get opinions from a couple of stoma nurses... often times they get to deal with this issue on a wider population basis than doctors. What I know to be true is to minimize leakage, the hole in the wafer must be cut to fit very close to the stoma with no more than a 1 mm gap (less is best). In preparing the wafer, I take about 2.5 inches of paste, roll it between my palms, and then snake it around the hole. Personally, I think this step is very important to reducing leaks. Why? Well, because the bead of paste is then round...when it is pressed between the skin and wafer, it has a reasonable chance of spreading flat and minimizing cavities.
My routine is to clean the skin with baby wipes... I never use soap... just commercial baby wipes... spray the entire area with the Cavilon barrier... wait 30 seconds then place the wafer over the stoma... I then go around the area just adjacent to the stoma with my little finger to force some paste around the stoma, i.e., to fill any gap thus reducing the probability of leakage... so in essence, you get two barriers...one by reducing the chance of liquid seeping around the stoma, and underneath the paste, which should hold the liquid back from the skin... so with the wafer in place (and a bag attached), I pull on a pair of pants which traps heat which in turn smooths out the trapped paste and hopefully creates a seal. I disagree with the nurse who said to place the Cavilon in spots...it should be used over the entire area...moisture is the biggest enemy of wafer glue, so when my wafer peels a bit I stick it down with 3M Transpore tape (I find this very good and have tried lighter weight products but was not satisfied) OR a breathable material called HYPAFIX or MEFIX. It comes in 4 in. rolls and is called a 'dressing retention sheet'...it can be purchased from the pharmacy... following these procedures the wafer usually lasts 5 to 7 days... it's just that you have to keep the edges from peeling back, do your best to make a smooth seal around the stoma (both around and under the wafer), and keep in mind the humidity would be high in your area so the baby will sweat and the moisture will compromise the glue on the wafer... hope this helps. If you have any questions...please ask.