I use this stuff which has bisabolol in it which helps redness http://www.yestocarrots.com/product/yes-to-tomatoes-daily-repair-treatment?product_id=2311199 It also has 1% salicylic acid and witch hazel in it, I don't know if you would want to use that with accutane because it's for oily skin. Aloe also moisturizes, soothes, and helps redness. I use this http://www.jason-personalcare.com/product/aloe-gel-tube A lot of brands have lots of bad stuff in them and hardly any aloe so you have to pick carefully. I also like using green tinted makeup primer. Have you tried using a sunscreen that has zinc oxide?
I've been using Lush Fresh Farmacy cleanser for the past two weeks and have yet to notice a difference in redness, but it doesnt irritate me so that's good. I'll keep at it once a day and just see how it fares.
Also bought some FOTE aloe vera today after seeing all the good reviews, so am going to use that on my face tonight -- I'll let you know how it goes!