My scalp is ON FIRE.

I just recently moved cross country to an entire different climate (from tropical to arctic) and my scalp and hair are both SOOOOOOO DRY. Like Sahara desert dry. I’m itching so much I’m causing lesions in my scalp. It burns and itches so bad! Wtf! What can I do to help my big fat head get some moisture back so it doesn’t look dead? God must hate his place its so fucking cold.