How To Treat Pinkish Hyper Pigmentation All Over Abdomen After Undergoing Liposuction?

i had smart lipo done in last august of last year. i am happy with the results except i still have pinkish hyperpigmentation all over my abdomen. i am fair skinned and it is really noticable, especially in the sun like at a pool or beach. i want to know if this will go away! i called my doc and he told me a month ago to give it another couple months. it seems like it is SLOWLY fading but how long could it take? bikini season is almost here, thats why i had it done last year at the end of the season!!