Dry Skin

Since 2 weeks ago, my face became very dry. Initially, I thought it was due to my facial, but it seems unlikely now. Its starting to flake on my skin around my nose and mouth area. It is so irritating. I have been applying the moisturizer as and when needed. I wash my face once instead of twice now. However, it doesn't seem to aid my skin at all. I've just started myself with Vit E Oil and hope it can really do wonders to my skin. Can anyone provide me a solution please?