Dont want to alarm you but you need to take her in,I had the same with polly when she was little(still is compared to her big butted bro Hank)and it turned out to be cancer,If you catch early enough they may be able to laser it off without taking part of the ear..Polly had laser but it grew back and had to take 1/4 of her little ear.She is happy and playful now,Take a pic of her now and compare after the dr visits.
Hootch