It helps in removing the dead Cells from your Skin that tends to give brighter Complexion. The Process should be done in Circular Motion and then Rinse off with luke warm water.
You must keep in mind that you must not scrub your face daily. Using facial Scrub once in a week is enough.
Use a natural Scrub as tiny grains, rice flour, Sugar etc. Rub gently with those Scrubs onto your Skin.
During winter, the Skin becomes very dry therefore it is important to keep the skin moisturized. So You must keep a small tube of light moisturizer in your purse especially during winters.
Also Apply Oil or glycerin or a night cream before going to bed in order to keep your skin hydrated overnight.