I'm the acne queen. hehe
I had acne as a child and had everything from cysts to your run of the mill blackheads. My mom was one of those moms whose children needed to be perfect. I spent ages at the darn dermatologist. Facials work short term, so does steam and CAREFUL manual extraction but what I found worked the best was peels. I mean aggressive chemical peels. It shrinks those pore straight up and walla no more black heads EVER. Problem was I had to be a bit older before the dermatologist would do it on me. They had levels of 1 through 10 with 10 you looked like a tomato for a month but came out with skin so perfect you could look awesome on HD tv. hehe. But that worked wonders. On the cysts and zits that were recurrent I'd get a nice injection of cortizone and they'd never come back there. It killed the pore literally but that was a one at a time sort of treatment.
Unfortunately I still have problems PMS time with zits. Not a blackhead still to this day but around my chin, where I never got treated because I never had blackheads, I still get zits. I learned ages ago how to manually extract them though without scarring so I do that and then put a script cream on them to make them vanish.
Put I'm so thankful to my mother that my nose, sides of my nose and forehead got the peel. Solved the vast majority of my problem for life. Now my poor 9 year old son is starting to get black heads. About time for him to start going to see the dermatologist if it bothers him. :(