I have dry patches on my arms, I've been told it is "howly rot" and that if I put Head and Shoulders Shampoo on it that it will go away. . . It's still there slightly.  How do I get rid of it?

Dry skin patches on your arms may be caused by many things, including atopic dermatitis, tinea or fungal infections, psoriasis, eczema, and others.  For a diagnosis and treatment, refer to your health care provider.