Hi, my black and tan doberman had her first litter 16 days ago. I was shocked to see 2 grey pups! I have never heard of Blue dobermans until i googled it. They are very beautiful, however I understand they are prone to skin conditions and I am now very concerned as these to gorgeous boys have developed wart-like skin eruptions on their heads, near their eyes and ears. I will be taking them to the vet first thing next week, in the meantime can anyone shed some light on what the problem might be?