How Can Hand Spots With Itching And Finger Rashes Be Treated?

HI I HAVE DEVELOPED WHITE ITCHY SPOTS ON THE PALM OF MY RIGHT HAQND. I REGUARLY GET A SIMILAR KIND OF RASH ON MY FINGERS ALTHOUGH THAT HAS BEEN KNOWN TO BE PAINFUL THE SPOTS ON MY HABD ARE JUST PLAIN ITCHY. I DONT KNOW IF THIS IS RELEVANT BUT I STAYED AT GREAT ORMAND STREET HOSPITAL LAST NIGHT AND NOTICED THE ITCHY PALM THING THIS MORNING.