Hi for dark spots u can use vitamin E based any natural cream. avoid ultta violet rays or directly sunlight on face. daab water,greens vegetables mainly gourd family vegetables, plenty of fruits around 300 G or 3 PCs per day very helpful. Papaya, bottle gourd,,bitter gourd, all citrus fruits like orange, lemon,etc.mainly all fibre rich foods,free from constipation, avoid improper cream, timely working, sleep, no stress, complete nutrition will surely help u.

Have good diet more fruits n veggies lots of water avoid junk and oily food write me on personal chat