Try neem oil for mites. It's working on my latest batch of stray kittens that lost hair between ears and eyes with tiny pinpoint red scabby dots. Vet told me she'd have to do a scraping to determine which med to prescribe. It's possible neem kills all mites by suffocation. Thick food grade coconut oil kills lice by suffocation...may kill mites too. Be very careful not to get neem in their eyes because it is an eye irritant.