Since Oct. 2013, I have had something that might be psoriasis, although three good doctors still aren t quite sure. I have taken prednisone, which works, and methotrexate, which made my sick. I have had allergy testing, skin samples taken from various areas, and still the rash, broken skin and itch appear almost over my whole body. I use, off and on, triamtinolone and chlobesterol, but have to stop so my skin won t be damaged by those. Now, two dark brown spots have suddenly appeared on my arm, about a 1/2 inch diameter. I m miserable. Any advice?