The dark spot on your face might have been due to excessive melanin, which the cream is reported to be a lightener of. Nevertheless, it appears it was too strong for your skin to bear. At that moment, first of all, it is critical to discontinue the use of the cream. To renew your skin, you can rub a mild cream and shield your skin from the sun. Allow your skin to rest for a while before introducing new products again. Should the peeling go on or other worrying symptoms appear, it will be best for you to get counseling from a dermatologist.