The food didn't say anything about corn, but I'll check.

The doctor said to bathe him to keep the dust off. I do put cortrisone cream with aloe and udder cream on him after the bath to keep him moist, but that draws dust so we back to bathing or wiping him down daily. It's a vicious circle.

Vet said the omega fatty acids would help and when he was off them for a while I noticed a difference. So he's back to taking them regularly.