Hello. I have developed a few scaly, painful patches on different areas of my body. The areas are the outer corners of my mouth, my left wrist, a cluster on my rear left thigh, my left ankle and a small cluster on the small of my back. These dry patches are excruciatingly itchy. Except for my mouth, all the dry patches are black. They first appeared a year and a half ago. I ve tried over the counter eczema creams, psoriasis creams,and cortisone creams. Can you help rid me of this problem?