Did you get out of the pool and put the vaseline on top of the chlorineated pool water? There's the problem. Once out of the pool, you need to do a bath with normal water and soap and put the lotions on afterwards.
What you did was pretty much seal in the chlorine right on her skin, and that's probably what caused the blisters.
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"