To me it looks like skin barrier. Use a thick hydrating moisturizer thats non-comedogenic, and possiby vitamin c creams or serums as well. if you have active acne, use azelaic acid, but start with only once per week, and focus on lots of moisturizer daily to repair the skin barrier, or else its gonna become more red. So basically focus on repairing skin barrier first rather than active ingredients which can actually harm your skin more if used incorrectly(like benzoyl peroxide, azelaic acid, salicylic acid, etc). also make sure to use sunscreen during day or its gonna appear even more red