Me and my friends were goofing around, and now we all have a scar on our wrists. Will it go away, or be there forever?

When did you do the challenge?

If it's a scar, its staying, if its just a burn-like scar, it'll slowly go away

It all depends on how bad the scar is.

I have a scar on my hand, from a burn, ( not the challenge) that I have had for over 45 years. I have scars on my arms that are 25 year old.

So yes, they may be rest of life, depends on how bad. Did your parents take you to doctor over the burns ?