Exfoliation involves the removal of the oldest dead skin cells on the skin’s outermost surface. Exfoliation is involved in the process of all facials, during microdermabrasion and chemical peels at medical spas. Exfoliation is important because it removes dead skin cells, which prevents these cells from clogging up your pores and creating blackheads. It also revives circulation on your skin and gives you a healthy glow. The treatment is to create a paste with two tbsp. baking soda and some mineral water. Apply the paste to your nose for a few minutes, then rinse with warm water, you will feel a lot better.