I just don't know the cause or reason, and I may never know. But if you are looking for some information on corn free dog food, I started a thread the other day and got so much good information that I am still wading through it all. If you want some help in deciding on what food to switch to, the info there might be a good place to start. It's under the dog health threads under dog food questions again...

Hope you find out the cause of your allergies/reactions. But I do suggest that you try getting them off the corn for a while and see if it helps