This has been going on for a while now - ever since she got bit by a spider on her ear. The spider bite has been gone for months, but she still refuses to stop scratching. Her ears (especially the one where the spider bit her) always have scabs and are bleeding. I thought she might have ear mites, but her ears are pretty clean. Looking down in them, there's no debris/ear wax/crusties visible. I don't know what's wrong with her and I don't have much money to spend on a vet visit...especially if it turns out there's nothing wrong.