Yeah, I believe Accutane wasn't the underlining cause for my problems, it just pushed them to the point that they were noticeable.
My skin has also been healing slightly slower then usual. What I think helps me the most is eating healthy fats. I eat plenty of seeds (sunflower,almonds,etc) and I eat a couple avocados daily, along with occasional fish.
I've stopped applying anything to my face. The more I leave my skin alone the faster it heals. Just make sure you rinse off any shampoo on your face while showering. Overall, I would say it's caused by a weak liver and lymphatic system, and so many of the things I do are to improve those aspects of my health.