Hydroquinone 4% cream after fraxel for asians. How should I use it?

I just got my first fraxel treatment. I was prescribed with hydroquinone 4% cream. I remember my technician telling me i should apply this ALL over my face except for around the lips and eyes because i am asian (since asians have different kind of skin type). Is this true? A lot of the general reviews seem to say you are suppose to apply it only on the dark spots. Im confused...