[header] How to treat ear mites [title] Look for redness and irritation. [step] The inside of the ear will be red and irritated; however, while a red irritated ear can be a sign of ear mites, that in and of itself isn't a definitive symptom. If you don't see any other ear-mite symptoms or have any doubt, see your vet. 
[substeps] Not all red and irritated ear canals are due to ear mites. Ear infections involving bacteria and yeast are quite common, particularly in dogs.