I haven't tried tegaderm instead of sure seals, but this is what they use all the time when I'm at the hospital to put over where the IV goes in. I had a piece of it over an X made with magic marker before my surgery, and it was there for a week..... I took many baths, and the X stayed. I also had it over the bandage after my JP drain was taken out, and that kept it dry.
I think it probably is the same or similar to the sure seal material, and I think it could work. Never thought of it before..... worth a try. It does feel about the same to me (I've been using the sure seals and liking them)
48 years old, female.
2004 dx indeterminate colitis. Many drugs, minimal success.
2010-11 Official dx Crohn's colitis. Crazy complications -- cutaneous Crohn's, Erythema Nodosum, marginal keratitis, high fevers. Out of good drug options, tired of scary drugs.
Feb 2011 -- proctocolectomy with permanent ileolostomy; abscess, blood clot. Still healing, still glad for the surgery