Hi....I have not heard of this before. I did a quick search for it. Am sorry that you and your little one are dealing with this issue.
I was surprised when I read that one symptom can be when a dog is scratching on the ear, shoulder, neck or sternum typically only on one side of the body. Sometimes the dog will scratch without ever making skin contact and the dog can start scratching while moving. I would never have thought it could something like this.
With your post it has made me now aware that scratching on the ear could be more then just an itch....TU we learn from the forum and posters.
What type of treatment is your little one going through. Did you have to see a Specialist? Is she responding well to treatment?
I wish you and your little one well and please let us know how she is doing.