The "suture line" should be completely healed within 4 weeks, even if you were on steroids at the time of surgery. Do you mean you still have sutures around your stoma? Those are usually dissolvable but often they don't dissolve on their own. Leaving them in for too long can cause suture granulomas so if they are still there, I would recommend having your WOCN or surgeon remove them. Convexity can slow healing though. Either way I would visit the WOCN.
If there's a little corner of the wafer that won't stick down, I would just snip it off. You really don't need the entire thing. The corner of my wafer used to go over my belly button as well depending on how I rotated it so I would just clip the corner off with a pair of scissors. Better to do that than have a piece sticking up that might get caught on something and end up peeling off more of the wafer.
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 7/31/13