i don't know of any natural methods of getting rid of freckles other than laser and whitening creams. but you can prevent from getting it with suv sunscreen/sunblock protection.
for freckles, i was reading this book called: Natural Recipes for Perfect Skin by PIerre Jean Cousin... it basically gives u info n recipes to cleanse, nourish, tone and hydrate your skin...as well treating skin problems... but anyways its says that fruit masks can can help.....as it says it would eliminate freckles, amking the skin seem whiter,as well as erasing faint lines and wrinkles of expression... so um, try out fruit masks? hope it helps...