As many others have said, there is a huge range of severity when you are talking allergies. This is a question I intend on asking amongst many others when looking for my next dog. I have a lab that started with allergies very young, and they were very bad at a very early age. I cant even begin to tell you the expense of trying to keep one step ahead of the awful skin issues, at one point I had him on two atopica 100 mg tablets a day, a box of 15 runs about $100,and that was only one of his many drugs... you do the math.My dog is probably one of the more extreme cases, but with allergies its the immune system that is all screwed up, his eventually led to him going blind with something called SARDs , sudden acquired retinal degeneration, and also has some weird kind of arthritis in his feet that seems to also be immune related...he is now back on methylprednisolone(steroids) which come with their own set of problems....so my answer is if the dog has allergies that you are treating.....Please do not breed, even if it is a one in a million chance hat it would be passed on, it is a miserable condition for the dog and so expensive and frustrating for the owner.