Hello, I have some acne scars on my face, my friend had suggested me to use hydroquinone cream i found a product with hydroquinone (Product Name: Melacare) i used this product for about 10 days and got amazing result but today i sawn white patches(Where i have applied melacare) so can i use melacare all over the face for 10 days to get same colour? and i know it makes the skin sensetive so i am already using sunscreen but Is it safe? i read many where that after discontinued using hydroquinone creams it will become more darker, is it true? Thank You so much in advance.