Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that you are suffering from post inflammatory
hyperpigmentation leading to dark patches on face that is caused due
allergic reaction and you need to keep patience as the hyperpigmentation can take a long time to resolve..
You can start washing your face with
Salicylic acid and
glycolic acid containing facewash..
You can apply creams containing
Kojic acid, glycolic acid and arbutin..
Grapeseed extract and Licorice extract containing creams are also helpful..
Vitamin E and C containing creams are also helpful..
You can exfoliate your skin twice a week with a gentle scrub..
You can also go for treatments like Photofacial, Chemical peeling and Microdermabrasions..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.