There may be a lot of skin built up in the canal that itches or blocks her hearing. We flush them periodically with a 50/50 mix of warm (hot) water and hydrogen peroxide. Get a 10cc syringe from your doctor and ask them to put a butterfly needle on the end. Cut the tube about 1/2 inch from the butterfly end and throw away the needle part. Lay her on a couple of towels and flush each side 3 or 4 times. It's really loud, so expect some tears, but it won't hurt her.
I'd also put some neosporin on the open sores because fingers are notoriously germy and she's likely to get an infection there.
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"