What’s the best way to use hydroquinone, cellex-c, and tazorac?

Can you answer archlydia’s question about Anti-Aging?:

I’ve been using a vitamin C serum for quite a while with nice results (improved skin texture) and my doctor recently prescribed tazorac (acne) and hydroquinone (short term basis for melasma). I was told to use the hydroquinone twice daily. Will this interfere with the tazorac or vitamin C serum? What’s the best way to combine (or not combine) them? I do not have sensitive or easily irritated skin and I know the risks of hydroquinone. My doctor said that using the tazorac will also help the hydroquinone work faster. Any suggestions?

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