Unless she is a young puppy or you have had ear mites definitely diagnosed in another pet in the house most likely no. Ear infections are very common in dogs, especially those with big floppy ears such as Labradors or Beagles. These ear infections can be either yeast, cocci bacteria or rod bacteria or a combination of any of the three. It is important for your vet to look at a microscope slide to determine which type of infection is present as the treatment is very different depending on the organism. Chronic ear infections can be indicative of an underlying problem. Many of these are really secondary to an underlying allergy. Others are due to the physical shape and size of the ear canal or even the lack of proper maintenance after a lot of water sport activity. Don’t let these go without help. Chronic ear problems can cause ear drum rupture, inner ear infections, calcification of the ear canal, deafness and definitely a lot of pain and irritation.