A pinkish hue happens often during a course of Accutane, particularly on a higher dosage, which 80mg would be consistent with. It normally resolves a few weeks after stopping the medication and goes back to the coloration before your Accutane cycle. What you were describing pre-treatment though...
Depending on the months of your first round of Accutane, now that you're taking it in the summer months and it's hotter, you could experience more dryness, which can result in burning or stinging. Apply a bit of cool water and some hydrocortisone (available over the counter at any pharmacy for a...