Kitty question

[LilyLovesBugs]

I know this is a chicken forum, but I would be thankful for any help.
My Siamese cat Belle had been having a lot of ear trouble lately, she scratches her ears till they have little scabs, she tips her head downwards and shakes her head. I thought it was earmites but I don't see any black gunk. She is an indoor cat and no other cats seem to be doing this. Her ears seam slightly dry.

 

[CMV]

My guesses are allergies or ear mites.

I hope you figure out what she has. Good luck.