I completed my accutane treatment about 20 months ago but skin still dry. Help?

I completed my accutane treatment about 20 months ago and my acne is better, although I still occasionally get one or two outbreaks. My main concern however is that my skin seems to have lost all its natural oils. It is very dry and my lips are wrinkly and get easily burnt by the sun despite my best efforts to moisten them. I use an SPF 30 lip balm but offers almost no relief. I read somewhere about accutane damaging sebaceous glands, how true is this and how do I reverse it?

No doctor answers yet