Thanks for writing to us
is a potent steriod
which if used on face for a long time can cause visible blood vessels , thinning of the skin, skin atrpohy , hypopigmentation(which you think as fair skin).Now that you are using a nonsteroidal cream you have no itching and rashes but black patches on your face you may do as follows:
Apply a sunscreen with UVA and UVB coverage during the day
Use a glycolic Face wash twice a day
Take oral Beta carotene
, VitC, Vit E supplements
You may take a few sessions of glycolic peels
Use kojic or glycolic acid
cream at night.
This will help in reduction of the dark patches, but the duration of treatment and response varies from person to person so dont worry and keep patience.
Hope this helps you.
Wishing you a speedy recovery.