Gah! Didn't realize that you were talking about acne in regards to HRT, so please disregard my vote.
If it makes you feel better, my crazy pills have broken me out everywhere. Face, arms, back... down there. Even my thighs. I'm seriously considering dropping the med, because I'm not even sure it's worth it (it's not even fully managing my symptoms). We'll see what the doctor says, I guess.
I found that eliminating dairy seemed to help (also I don't eat pork or red meat). Maybe that could help? I also washed my face with Cetaphil, which I think helped, but was too drying, so now I'm looking for something else. Either way you should check if your doctor has any tips or tricks on how to deal with that side-effect.
Sorry I couldn't be more helpful!