On the bottoms of my feet and on the palms

Patient: On the bottoms of my feet and on the palms of my hands I have spots that look and feel like a blister is in the makes but it only lasts the night and then the next night the same thing but in different spots. And itches like crazy. Looks like if I were to press a pen cap on a sun burn and it would look like the white mark that gets left

Images:
On the bottoms of my feet a...-1

Doctor: