accutane and moisterizer

at first I was using cetaphil moisterizer very librerally while 2.5
weeks,40mgs, into treetment. I still am getting pustule acne on the
surface of my forehead! and cheeks. I now(3weeks) stopped
moisterizing and they seem to dry up faster. I also wash with the
cetaphil bar soap twice daily instead of the liquid cetaphil. This
combined with not moisterizing is working pretty well to dry up those
pustules. I was afraid to stop moisterizing because I feared that my
face might turn red or scare but I see no signs of either. Maybe when
I get bumped up to 80 mgs I'll need to use moisteriser.

I had thought about using some other kind of harsher cleanser on my
forehead but I'm trying this out for now. Would an astringent used on
the forehead be recommended by anyone or should I just wait it out?