I am 20 years old I have seb. dermatitis on scalp and sometimes my body itches in a points way ,i apply anaboom d lotion on my scalp daily at night and next day wash it with any shampoo. I also use 8x shampoo on alternate days. But it was gone once but it again came then I started using these again. Can you please help. I want to know that I have read many times on internet on different websites that one of the many cause of this is hiv ,is it because of hiv .i've never been tested for hiv. And i'm too afraid to testify.