You know....the back of my ears "cracked" and were irritated all summer and into the fall too. If they weren't cracked...they were super dry and almost seemed like I had 'cradle cap'.
I found something that worked really, really good for me...100% Emu Oil. My girlfriend suggested it, and she was right on! My ears and face have been very happy ever since I started using it.
Here is a link with some information
http://www.emu-oil.com/whatis.htm