Re: dry, shiny, flakey patches
Drinking lots of water does help your skin. But, I'll tell you how I work with my face which does tend to get dry really easily.
I use Ponds Clean Sweep. I used to use the one with the Blue lettering but, am using the one with the green lettering because it has some exfoliating beads that help to sluff off the flakes when they are there and keeps them at bay when they aren't. Then once every other day I use Queen Helene's Mint Julep Masque. In the shower I wash my face with Olay Daily Facials Self Foaming Discs (I think that is what they are called). Out of the shower, I moisturize with Ponds Cream in the white container with the blue lid. It has taken me nearly a decade to find the perfect regime for me.