I am 32 yrs old I am having pigmentation like brown spots on my face from the last 3 years. Pl suggest what should I do.?

IPL Lightens brown. Brown spots can be improved using ipl, fraxel dual, hydoquinone products such as. Obagi and also elure with melanozyme. Make sure you use sunscreens every day as the sun will bring them back.
Dermatologist. There may not be anything to do about the discoloration, but it's worth a consultation with a dermatologist.