Can I use bleaching/skin lighting cream between laser sessions on bikini area to improve results of next treatment?

I am getting my bikini area done, 3/6 sessions so far and the results Are minimal. I was told that results may not be great as I have darker bikini area. Would it be safe to use bleaching cream down there before my next treatment? What else can improve my results. My underarms did great, so did my legs and arms.