I know that using retin-a micro gel causes your sking to flare up and you to break out for a period of time before it gets better. Ive used it before and already gone through that. I was using the gel for a while but have recently taken a couple month break from it. I was just wondering if i start using it again, will i have to go through that initial break out phase again? or is my skin already used to it because i used it once?