Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain if the skin tone has darkened and it is not exactly what you have naturally since birth then it is pigmentation of skin and can be improved gradually to some extent although may or may not completely resolve..
You can use facewash containing
Salicylic acid and
Glycolic acid like Melaglow or AHA glow atleast 2 to 3 times a day.
Apply creams containing
Kojic Acid, Glycolic acid and arbutin..
Taking Vitamin C supplements and applying
Vitamin E gel at night will help..
You should always apply sunscreen lotion when exposed to sun..
Scrub your face twice a week using a gentle scrub..
Drink plenty of water and take a nutritious diet..
You can also go for Photofacial and chemical peeling by
dermatologist..
Hope this information helps..
Thanks and regards.
Dr. Honey Nandwani Arora.