It's good your dermatologist said your skin should calm down in a few weeks but can understand why you'd like to do something about it in the meanwhile. I have many many red marks on my face where acne was before. I'm about to start accutane and my dermatologist said it tends to make your whole face red, perhaps you have a combination of general accutane induced redness and post acne marks?
My dermatologist recommended green cream to counteract redness so you could try that? I appreciate you are a guy and most of these things are marketed towards girls but the one I have just calms the redness without leaving anything visible so you don't need makeup on top. The one I have is Clinique anti-redness solutions daily protective base. It's not a miracle cure, it doesn't make my red marks disappear just tones them down a little bit (and makes them easier to cover with makeup.)
The only other tip I have is use high spf sunscreen if you aren't already. My whole face used to be several shades redder than the rest of my body just from using benzoyl peroxide but when I started wearing high spf sunscreen everyday the redness calmed right down.
Hope that helps, and sorry you're dealing with this I know it sucks!