hello there.. welcome to healthcaremagic.. thanks or ur query..
wel melaglow cream contains hydroquinone
.. and both when used for long term can cause many sideeffects. hydroquinone has been proved to cause skin cancer
if used for long term, so i advice u to stop using melaglow cream, and resort to natural methods of clearing the dark spots like
apply lemon juice on the spots with cotton to the dark spot in rolling motion or mix 1 tablespoon honey with some brownsugar and 1 teaspoon of lemon and apply the mixture and keep it for some 1 to 2 hours then wash with only water..
i hope this solves ur query...