What could happen if a pet’s ear infection is left untreated?

If an ear infection is left untreated, it is likely the infection will continue and worsen. In severe cases, the infection may cause rupture of the ear drum and progress to a middle ear infection. If you have experienced an ear infection, you’ll relate to how uncomfortable and in some cases, painful it can be. Ear infections should be addressed when you first notice symptoms to minimize the impact to your pet.