It usually doesn’t feel too itchy, but it can feel itchy. Normally, the skin exfoliates within a certain time period. This means that the top of the skin will come off in very small flakes, because it has time to disintegrate; there are enzymes on top of skin that cut the little bonds in the skin cells, so they come off in very small parts you don’t see (and it ends up as dust in your house!).