Pay attention to how many times your germy phone brushes by your cheecks .
Why do I only get acne on my cheeks? And how do I avoid it if possible?
I dunno why it's only on your cheeks ... I only got it on my legs. Lol
To increase your chances of avoiding acne ... Don't eat greasy foods, don't use oily soaps, don't use makeup, shower/bathe daily.
I used to get it like that. I found that I often touched my face there when I would be thinking about things. Once I broke that habit my face cleared up.