Melasma/Age spots

Dr. Mom,
I forgot to ask you this on my other post. When I was pregnant with my other 2 kids I got a little melasma on my upper lip. I noticed that I have brown spots on the right side of my face that look like age spots and my freckles that were light seem dark. I am 35 and was wondering if I can put anything on my face to lighten these.

I have heard vinegar and aloe vera. Not sure what if anything I can do to lighten these while I am pregnant and afterwards as well.

Thanks for your knowledge,
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