Red marks - post inflammatory hyperpigmentation or scars?

Hi
I'm 17 years old. In the 5rd of July 2012 my derm prescribed me Accutane. By 2 weeks I was taking 20mg, in the next 2 weeks 30 mg and after 4 weeks I'm taking 40mg. Acne disappear in 1,5 month time, but I have red marks (scars?) on my cheeks. And here's my question: is it PIH or scars?

Today is the 11nd of November and that marks still there. I don't see any progress.

The photos shows 4th month of my treatment. In the end of August acne dissapeared completely and after that day I have THIS on my cheeks:

http://www.abload.de/img/2xzjfc.png
http://www.abload.de/img/3kwkzy.png
http://www.abload.de/img/1xvjep.png

What is it? PIH or scars?...
Does it dissapear?

Thank you in advance


PS.
Should I moisturize my skin? Does it helps in fading of that marks? I'm still taking 40mg of Accutane.

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