Thanks for your query
To reduce the dark spots on face, you can take the following steps:
1) Use a broad spectrum sunscreen every 4-6 hourly.
2) Apply a cream containing Kojic acid twice daily on the spots
3) Oral Vit C capsules (1000mg) daily
You can opt for chemical peels
with your dermatologist
for a more effective lightening of the spots.Peels having glycolic acid
, trichloroacetic acid
can be done for a few sittings to lighten the spots.
hope this is helpful,take care!