Rough Scalp?

[Frdtrtnfx4]

I am coming up on 8 weeks post op 1600 grafts via strip. I am experiencing a rough scalp, its somewhat crusty, I dont know why. When I try to comb my hair, the comb just gets stuck. Some of the crust seems to have come from dried up pimples, and the rest I dont know. I thought I rubbed all of the scabs off last month. Any thoughts?