I had DI with Dr. Fischer 6 weeks ago. The stuff other than the tape on top that you refer to, is it the yellow gause? If it is, it is probably just stuck on with some dried blood and should probably fall off on its own after a bath or three. Yes, the tape does take different times fall off from each side, and the nipples do heal at different rates, at least from my experience. Both nipples were scabby for a few weeks, but my right one healed faster than my left and both had different healing patterns. Best of luck with your healing.