A.R.
Hello!
When my son was 2, he had a similar injory and they used Dermabond for it also. They said it would take a week to fall off, but after 2 weeks because I wanted to give it plenty of time to heal, I gradually started to peel it off a tiny bit each day. His was on his eyebrow, so I think the hair is what made it stick longer. Take care!
A.