Breed Health Guide • Reviewed by Dr. Tiffany Delacruz, DVM
Chronic Ear Infections (Otitis Externa) in Cocker Spaniels
Also known as: Chronic Otitis
If you have a Cocker Spaniel, you already know: their ears are gorgeous, and they get infections. Cockers carry one of the highest documented breed risks for chronic otitis externa. The ear anatomy, the abundant ear-canal glands, and a strong predisposition to allergies combine to make ear infections a lifelong management issue for many Cockers — but one that can be managed well.
Why Cocker Spaniels are predisposed to chronic ear infections (otitis externa)
Three breed-specific factors stack together: heavy hanging ears trap moisture and reduce airflow; Cockers have more ceruminous (wax) glands in the ear canal than most breeds, producing more wax; and they have a high rate of underlying atopic (allergic) skin disease, which inflames ear canal skin and sets the stage for secondary infection. The result is a perfect storm — and the infection often becomes chronic if the underlying allergy isn't addressed.
What you'll see at home
- Head shaking and ear scratching
- Strong odor from the ears
- Dark, waxy, yellow, or greenish ear discharge
- Red, inflamed ear canals visible at the entrance
- Pain on handling the ears
- Head tilt (consider middle/inner ear involvement)
- Hearing loss in chronic cases
- Recurrent flare-ups, especially in warm humid months
Red flags — go to an emergency vet
- ⚠ Sudden onset of head tilt, walking in circles, or loss of balance — possible middle or inner ear involvement
- ⚠ Severe pain — won't let you touch the head
- ⚠ Facial nerve paralysis (drooping face, can't blink) — middle ear disease
- ⚠ Fever along with ear pain
- ⚠ Bleeding from the ear canal
How vets diagnose chronic ear infections (otitis externa)
Otoscopic exam — looking down the ear canal at the eardrum and canal lining. Cytology (looking at swabs under a microscope) to identify yeast, bacteria, and inflammation. Bacterial culture and sensitivity for resistant or chronic cases. Allergy testing or food elimination trial if the underlying driver is allergies — which it usually is in Cockers. Advanced imaging (CT) and video otoscopy for chronic, end-stage, or middle ear cases.
Treatment options
Acute infection: ear flush, topical medication targeted to cytology findings (antibiotic + antifungal + anti-inflammatory combinations). Chronic infection: identify and treat the underlying allergy — this is non-negotiable for long-term control. Options include hypoallergenic diet trial, Apoquel or Cytopoint for atopic dogs, immunotherapy for environmental allergies, and consistent ear-cleaning routines. Resistant infections require culture-guided antibiotics. Surgical options (TECA-BO) exist for end-stage chronic cases where medical management has failed.
Living with a Cocker Spaniel who has chronic ear infections (otitis externa)
- 1 Weekly ear cleaning with an appropriate veterinary cleaner is preventive maintenance, not optional
- 2 Dry the ears after swimming or bathing — moisture drives recurrence
- 3 Don't use cotton swabs deep in the canal — wipe the visible part only
- 4 Address allergies aggressively — Apoquel, Cytopoint, or diet trial all help
- 5 Photograph the ears at each vet visit to track progress objectively
- 6 Identify your dog's seasonal pattern and pre-emptively start ear cleaning before peak season
- 7 Pet insurance for chronic conditions is meaningful — buy young, before ear disease is documented
- 8 If infections persist despite optimal care, ask about video otoscopy at a dermatology specialist
Can RexVet help with this online?
RexVet is well-suited for: refills of established ear cleaners and approved chronic ear medications, coaching on ear cleaning technique, advice on allergy management and diet trials, and triaging whether a flare-up needs in-person otoscopy today.
Start a $64.99 video visit →We can't look down the ear canal, run cytology, or culture an infection by video. A new acute infection — especially with severe pain, head tilt, or facial nerve signs — needs in-person otoscopy and cytology to guide treatment. We can refill what's working, but the diagnosis comes from the exam.
Prognosis — what to expect
Excellent with consistent management — most Cockers achieve good control of their ears when both the infection and the underlying allergy are treated. Untreated or partially treated chronic otitis can progress to end-stage ear disease requiring surgery. The single biggest determinant of outcome is whether the underlying allergy is identified and treated, not which ear drop is used.
Frequently asked questions
Frequently asked questions
Why do Cocker Spaniels get so many ear infections?
Three breed factors combine: heavy hanging ears trap moisture and reduce airflow, the ear canal has more wax-producing glands than most breeds, and Cockers have a high rate of underlying allergies that inflame the ear canal and invite infection. The infection is the visible problem; the allergy is usually the underlying driver. Treating only the infection — without addressing the allergy — leads to recurrence.
How often should I clean my Cocker Spaniel's ears?
For most Cockers, weekly ear cleaning with an appropriate veterinary cleaner is preventive maintenance. Active infection cases often need 2-3 times weekly cleaning during treatment, then taper back to weekly maintenance. Always dry the ears after baths or swimming. Don't push cotton swabs deep into the canal — wipe the visible parts only.
When do my Cocker Spaniel's ears need to be seen in person vs telehealth?
First-time infections, severe pain, head tilt, facial nerve signs (drooping face), bleeding, or anything not responding to home care needs in-person otoscopy. RexVet can help with refills of established ear medications, ear-cleaning technique, allergy management, and deciding whether today's flare-up can wait or needs to be seen.
Other helpful RexVet resources for Cocker Spaniels parents
Sources
- American College of Veterinary Dermatology
- Merck Veterinary Manual — Otitis Externa
- AKC Cocker Spaniel Breed Page
Last fact-checked: 2026-06-03. Reviewed by Dr. Tiffany Delacruz, DVM.
Worried about your Cocker Spaniel?
Talk to a licensed RexVet veterinarian from home — Cocker Spaniel parents nationwide get answers in under an hour.