I M ON Methotrexate and Prednisone for my RA,, I have been for several years,,, I ve developed a severe itch in my groin area and my private parts and it s a terrible itch,, when I looked to check there are small white bumps,,,, could this be from the Methotrexate or Prednisone? it s been there for several months now,,, was hoping it would go away but it hasn t,, my doctor is aware of the itch,, tells me to take Claritin??