Do you have a WOCN you can visit, perhaps through your surgeon's office? A lot of the time if you go to them on a day when your current appliance is getting close to the end of its lifespan, they can sort of tell which part is about
to fail. Not to mention in general they are just really helpful with this stuff!
A few thoughts... Would you be willing to drop back to a shorter wear time until things get sorted? I know plenty of people are successful with weekly changes but twice weekly is what's technically recommended. It's an extra ~20 minutes out of your life in exchange for more piece of mind, right?
Do you use any kind of barrier ring? Seems practically everyone around here does. I like the Hollister Adapt Rings, the other most popular kind are the Eakin Seals from Convatec. You can get samples of both from the manufacturer or sometimes your mail order pharmacy. I get the sense that these have kind of replaced Stomahesive paste as a tool of choice in the past 12 years.
Someone will be along presently to tell you about
Friar's Balsam... I've never used it and don't really understand what it is, but I know enough to know it helps with leaks
I would definitely stick to changing one thing at a time, unless you're ready to throw out all your supplies!
dx'ed UC pancolitis 5/12
past meds: asacol hd, VSL#3, apriso, rowasa, xifaxan, 6mp, cortifoam, pentasa, cimzia, canasa, butyrate, flagyl, cipro, prednisone, remicade, methotrexate, cholestyramine, cortenema
current meds: none!
step one: colectomy, end ileo 1/16/13
step two: j-pouch construction, loop ileo 5/1/13
step three: takedown sometime