Cleansing is a must for your skin and more so if you are suffering from skin conditions like acne. But, why is it so important to clean your skin? There are numerous mud particles and impurities that keep on sticking to the skin. These dirt particles along with sebum get trapped in the skin pores to form a pimple or a zit. So, if you would like to keep your skin acne free, ensure that you keep it clean.