People who live in dry climates of the world often experience having a dry itchy scalp. This is not un-common and there are ways to treat it. Many people have found that taking flaxseed oil regularily reduced the amount of dandruff and itchyness to their scalp. This is because flaxseed oil helps reduce the amount of oil released by your skin which tend to flake and dry out your scalp. You can buy flaxseed oil as a liquid or pill from your local drug store.