Earmites are microscopic parasites causing an accumulation of black debris in the ears, as well as extreme discomfort. Head shaking and ear scratching are common symptoms. If untreated, these mites may cause secondary bacterial or yeast infection and vestibular disease symptomized by dizziness. Ear-mites are found in the soil and are spread among dogs & cats alike, but thankfully decline to reside in human ears. They are extremely contagious. Apply the recommended drops or ointment into your pet’s ears as directed. All pets in the household should be treated to prevent recurrence. Revolution is a monthly topical application that prevents heartworms, hookworms, roundworms, mange and earmites.