If you do not provide a clean facial skin care, for example, when your hand is dirty, then touch your face, it's like you bring dirt into your face or that of chen, pillow, blankets. The towels are not clean these cause acne.
You do not maintain a clean surface, such as when your hands are dirty. Then touch the face It's like you put dirt into the face or utensils are not clean towels, blankets, pillows, for example, these cause acne.
That you don't care to clean the surface, such as when your hands are dirty, and touch the face, just like you bring the dirt into the face or. Things. Change, pillow, blanket, towel, unclean. These cause acne.