Hi Dear,
Welcome to HCM.
Understanding your concern.
The condition you describe in your query about black and brown patches on face is hyper pigmentation(
melasma) of skin .There can be many factors that can cause melasma,but the most important factor is sun burn .
I would suggest you to -:
-Protect your skin from sun exposure and use sunscreen with SPF 50.
-Apply tertenoin gel or cream which will help to remove dead skin.
-
Hydroquinone cream will also very effective in decreasing pigment .
-You can also apply butter milk with cotton and wash it with water twice a day .
-Drink plenty of water and eat fresh green leafy vegetable.
If condition persists for more then few weeks then
consult dermatologist .Doctor may suggest for chemical peeling .
Hope your concern has been resolved.
Get well Soon.
Best Wishes,
Dr. Harry Maheshwari