Scalp. A lot of people shampoo their hair and don't pay much attention to their scalp, but the truth is that proper scalp care can help avoid some common problems, like an itchy, flaky scalp. Your scalp is full of sweat glands that need to be properly cleaned; if they're neglected, flakes form. When you're in the shower, scrub your scalp for a full minute or two before rinsing out the shampoo. Also, if shampoo itself irritates your scalp, you can try an organic variety or even just baking soda, which cleanses and clarifies.