For the past 3 years my hair has been gradually thinning only on the top, and my scalp
is red, but only about an inch wide down the top center. In this inch wide area, it itches, it is extremely tender, some spots more sore than others, and it burns. My hair feels like it is standing on end, it hurts for the wind to blow through it. It has occasionally caused headaches, extreme cold hurts it, and the sun causes excruciating pain/burning. There are no scabs, no pimples, nothing.