Dog Ear Infection

An ear infection is inflammation of the ear canal, usually driven by yeast, bacteria, or both. Dogs with floppy ears, lots of ear hair, or allergies tend to be more prone.

Common causes and contributing factors include:

• Allergies (food or environmental)
• Moisture trapped after swimming or bathing
• Excess ear wax or hair in the canal
• Ear mites (more common in puppies)
• Foreign material (foxtails, dirt, plant awns)
• Narrow ear canals or floppy ear conformation
• Endocrine conditions that change skin and ear environment
• Prior incomplete treatment that left infection behind

Breed and lifestyle matter. A Labrador who swims often has a different risk profile than a small breed with chronic allergies.

When Is a Dog Ear Infection an Emergency?

Most ear infections are painful but not immediately life-threatening. Still, some situations need same-day care. Call us promptly if your dog:

• Suddenly cannot hear or seems disoriented
• Has a head tilt, circling, or loss of balance
• Is in obvious severe pain when the ear is touched
• Has bleeding from the ear
• Has facial swelling or one eye that won’t blink normally
• Is lethargic, vomiting, or refusing to eat along with ear signs
• Has a wound, puncture, or foreign object visible in the ear

Balance changes and severe pain can mean the infection has moved deeper or the eardrum is involved. Don’t wait those out.

What To Do When Your Dog Is Shaking Their Head but Seems Otherwise Fine

This is a common search – and it makes sense. Dogs often keep eating and playing while an ear infection builds. Head shaking, pawing at one ear, or a mild odor can be the only early clues.

Don’t use “they’re still acting normal” as proof it’s minor. Ear canals are sensitive, and infection can progress quickly once yeast or bacteria take hold. If head shaking or scratching lasts more than a day or two – or you notice redness, discharge, or smell – schedule an exam.

Avoid pouring over-the-counter drops into the ear before a vet looks. If the eardrum is damaged, the wrong product can make things worse.

Dog Ear Infection vs. Allergies

Many recurring ear infections are really an allergy story. Dogs with food or environmental allergies often get itchy skin and itchy ears. Treating the infection clears the flare – but if the underlying allergy isn’t managed, the ears keep coming back.

Patterns that suggest allergies in the mix:

• Ear infections that return every few months
• Itchy paws, belly, or face along with ear signs
• Seasonal flares
• History of “chronic ears” since young adulthood

If your dog is on their second or third ear infection, ask us about allergy workup and long-term prevention – not just another round of drops.

Preventing Future Problems

Prevention strategies may include:

• Drying ears after swimming or baths (when recommended)
• Managing underlying allergies
• Following a vet-guided cleaning routine
• Staying current on wellness exams
• Avoiding cotton swabs deep in the canal

Our team can help you build a prevention plan that fits your dog’s ear type, lifestyle, and history.

How We Diagnose Ear Infections in Dogs

At Lakeville Family Pet Clinic, we don’t guess. Looking at the canal and checking what organisms are present helps us choose the right medication the first time. Evaluation may include:

• Full physical examination
• Otoscopic exam of the ear canal
• Ear cytology (looking at discharge under a microscope)
• Assessment of the eardrum when possible
• Allergy or skin history review
• Culture in stubborn or recurrent cases
• Imaging if a deeper middle-ear problem is suspected

We’ll take the time to find what’s actually going on rather than treat by guesswork.

Treatment Options for Dog Ear Infections

Treatment depends on what’s growing, how inflamed the canal is, and whether allergies or other drivers are involved.

Options may include:

• Professional ear cleaning
• Prescription topical ear medication
• Oral medication when the infection is severe or deeper
• Pain and itch relief
• Allergy management for recurrent cases
• Follow-up rechecks to confirm the infection is truly resolved
• Guidance on home cleaning only when it’s safe for your dog

Most dogs feel better within days once the right treatment starts – but finishing the full course and the recheck visit matters so the infection doesn’t rebound.