I Have Had Several Symptoms One.. Itchy Scalp All Over

I have had several symptoms one.. Itchy scalp all over night sweats on the back of my head, neck, going on 2 months. I have had steroid shots a steroid dose pac, then augment ion for one week. Still the itching is horrible, a rash started showing up around my scalp on the edge of my face. Now. I have spots breaking out on different parts of my body itchin. In back shoulder skin etc