Which of the following is not a common symptom of ear mites?

Frequent itching of the nose is not a common symptom of ear mites. Ear mites primarily affect the ears of dogs and other animals, leading to symptoms localized to that area. Common signs of ear mite infestation include pain in the ears, as the mites can cause irritation and discomfort; brown waxy ears, which result from the discharge produced by the mites; and inflammation in the ears, as the body reacts to the presence of the parasites. These symptoms are all related to issues occurring specifically within or near the ear canal.

On the other hand, itching of the nose is generally associated with different conditions, such as allergies or skin irritations, rather than with ear mites. This distinction highlights the localized nature of ear mite symptoms and reinforces understanding of where to look for signs of infestation.