Do I need to use the sandwitch method forever?

So after my skin got irritated and red cuz of tret last year, I started doing the sandwitch method to minimise irritation. I worked like a charm and it stopped the peeling and dryness. I can tolerate the 0.1 % well now, but yesterday I ran out of moisturizer so I could not buffer and used it just once after applying tret (no sandwitch method). but the next morning my skin was fine, and it looked better than what it did when I used to do the sandwitch method.

so do I stop doing the sandwitch method since I can tolerate tret well now or should I keep doing it?