My 5-year-old daughter has lamellar ichthyosis and she has very dry ears. Every night, I add a couple of drops of vitamin E to warm olive oil and then massage it over and around her ears, the skin pratically "drinks" it up and the next day there is always less dryness. I also have to put olive oil into her ears (without the vitamin E) or use a product like Waxsol as the dry skin falls in and mixes with the wax. Once that hardens, she ends up having a hearing problem.
Anyway, try the olive oil treatment every night before bed and in the morning after bathing and see how you get on.
Any probs, let me know.