Hi, I'm fairly new to rabbit motherhood but what I would say is have u checked your rabbits nails as my cat hurts herself around her face when her nails get too long. Just an idea to consider along with other ideas. I've been watching mine scratch around her ears as well, and I'm getting worried. I know with ear mites they tend to shake their ears as tho their are things in them and it can leave black gunky stuff. Good luck, I'll be watching for replies also!!