so I've been so itchy lately like my whole body. legs Arms belly butt feet hands just everything and I told my Dr she said moisturize I have it doesn't help at all .nothing does . not cocoa butter not lotions Cortizone cream oat meal baths nothing. what can it be and what can help ? or what can I do ? please help I'm desperate I'm scratching all day everyday and it won't stop. it's stressing me out .