i get that bad when I come off test aswell,infact only suspension gives me acne while on.
what I do to keep my skin clear or atleast tolerable is tan ,alot ,it will kill those bastards and being dark will hide the red spots, also shower 2 times daily,if you can use an exfoliate that will help,aswell as a good acne wash,I like clean and clear.
I also go in a steam room at the gym to open up those pores and then shower right after.
pantothenic acid works well for some folks,but did fuck all for me.
good luck did pct acne sucks,especially if its big cysts