Well when I got Milo, he definatley looked kinda malnutritioned so I assumed it was that. His hair on his nose used to be bald and now it is growing back so I figured maybe his ear is doing something like that too...but it was really dry so I put some calendula ointment on and rubbed it in..well his hair rubbed off with it..?? I just been doing that every couple days..to see if it grows back fresh? Let me know if anyone has this condition figured out. I would like to know too. p.s Milo has a bald tail too and so I put ointment on that too and it seems like it is starting to grow back...?