Changing pillow covers
Our body continuously replaces old cells with new cells, even while you are sleeping. Changing pillow covers and bed sheets every now and then is a sign of a healthy lifestyle. While sleeping our body produces excess saliva, which leaks through our mouth and is absorbed by the pillow covers and bed sheets. This saliva when mixed with dead skin cells and dirt which is already present on the unchanged covers and sheets cause the pores to clog. So it is advised to change pillow covers and bedsheet after a day or two.