Hi dimension,
I don't think what's happening to you is normal, you could have got some kind of alergic reaction from it, stop using it melederm after short use is not permanent so maybe this redness would go away, but keep trying to melederm to try and find why this has happened and perhaps they could give you a solution to this problem.
I have not had this reaction I am seeing some lightning on my chin but its so slow I think I will see great improvement in a couple of weeks, so I'm sticking with it to see if it really works.
Good luck dimension I hope your redness goes away.