Hello
Have you had him treated for YEAST infection??? Ears, feet , and face are common in this. Caused by humidity, and GRAIN in the diet, mainly rice! Grain is in every dog food, and Dogs do not eat grain in the wild, and their digestive systems dont cope with it. Itchy skin is the first sign of a proble, & yeasty ears , licking feet , rubbing face.......
Just my guess.........
Cheers
Cassy