What are some common symptoms of a dog ear infection, such as brown wax buildup, and how can it be treated effectively?

Common symptoms of a dog ear infection include brown wax buildup, redness or swelling in the ear, shaking of the head, and a foul odor. To treat a dog ear infection effectively, it is important to consult a veterinarian for proper diagnosis and treatment, which may include cleaning the ear, prescribed medication such as antibiotics or ear drops, and addressing any underlying causes such as Allergies or ear mites.