Medicine For Itchy, Dry Blisters On Hands And Feet

hi, for the lastr 6 months I've had little blisters that hve broken out on the palms of my hands they get very ichy sweel and dry out and crack severly have now the same sypmtoms on the soles of my feet with it starting to spread to my shins and forearms have been on anitbotics and avartan ointment with no change