Hi, I have some itchy clear blisters on my fingers arm and toes .When they blisters are scraped out pops a little
black spec like hair ? What is odd is these blisters are not near hair follicles. On the fingers they are on the knuckles closest to the nail. On the arm they are on the inside middle of the arm. On the toes they are on the skin closet to the nail. What could this be ?