Hello, Just joined today so hoping I can find help! My boy, 1 and a half old Frenchie has started losing the hair on his tail. It's not very big, just a tiny wee stump and has always had a little bald patch in the middle as that's the way he sits. Recently though he has lost all the hair at the top, we pull back the folds to ensure the skin is ok and all seems fine. Does anyone have any idea what we can do?