[Routine help] If you are able to fix a skincare issue using an ingredient or product, do you need to continue using it forever?

Beauty Tips For Body Care
Sorry in advance because I know this sounds like a dumb question. I am currently using TO Azeliac Acid and Niacinamide in hopes of addressing my textured forehead/tiny closed comedomes. If either of these end up being really effective like I am hoping, does that mean I will continue to have to use them for the rest of my life? Or is the issue effectively “fixed” and I can just focus on maintaining a normal skin routine?
Girls Blog 2015
Submitted by thelastseptember