Hi, my 5 month old havanese also has a pink nose. When I asked the breeder about it she just said it was part of his chocolate father. She had said his eyes would be brown but they have gone from blue to green. He has not had any fleas yet but does sneeze alot! His coat is white/cream. His skin on his belly has just started looking splotchy. Thank you for sharing. I hope he is not in for a lot of allergies as he gets older.