54 6' 195lbs. I have diffuse Large smoothB cell lymphoma. It was low grade at the last biopsy. High grade before that. I was given a bone marrow stem cell transplant in '09. A rash (~1"x2", rough, slightly raised and itchy) has appeared on the top of my right foot. An elliptical, smooth, solid red rash, ~1" wide, has appeared in my left arm pit. It tends to burn and itch. Does this sound like Lymphoma Rash? Is there any treatment for it?