Keep in mind that we have a somewhat different type - it acts and looks like EHK but does not blister.
We put the boys in the shower for extended times. I let them soak in the water/steam for a good 15-20 minutes, then get in with them and start rubbing like Sarah described. I have found that starting on the sides of the nose, the sides of the neck, around the shoulder blades, the collarbone or the armpits gets some of the skin to roll off. I use the removed skin as a source of friction to continue in other areas and do as much as I can until my hands start to prune.
Some days it hurts, but generally, even though the shower is unpleasant, afterwards results in more comfort, less smell, less itch, and better walking. For our type, we also file the hands and feet, but they are thick and calloused and full of cracks if we don't. That definitely hurts, but again, the week of comfort outweighs the hour of misery from filing.
Ichthyosis-en-Confetti Type 2
Husband, Nathan - 10, Elliot - 7, Oliver - 4, all affected.
I also have an unaffected daughter, age 8.
email: jennifer at confettiskin dot com
facebook - find me on "ichthyosis mommy spot" or "friends of ichthyosis"