Cavalier King Charles Spaniel Ear Infections: Signs, Causes and Ear Care

Cavalier owners know the look: a soft, silky ear that drapes almost to the shoulder and frames that sweet face. Those ears are a big part of the breed's appeal. They also hide the ear canal from view, hold onto damp and debris, and sit on top of a couple of health quirks that are unique to Cavaliers.

This guide covers what sets Cavalier King Charles Spaniel ears apart, the clues that something is off, the moments that call for your vet, and an at-home routine that fits a feathered toy spaniel.

What makes Cavalier ears different

• A long, heavily feathered flap. The leather is set high and hangs flat against the head, with a curtain of silky fringe on top. Very little air reaches the canal, so it stays warm and humid.
• Fringe that acts like a sponge. The feathering dips into water bowls and dinner plates, picks up burrs on walks and soaks up bath water. Whatever it collects ends up right at the entrance to the ear.
• Itchy skin. Spaniels as a group tend toward allergic skin disease, and Cavaliers are no exception. When allergies flare, the lining of the ear canal is often one of the first places to get red and greasy.
• Glue ear (PSOM). Primary secretory otitis media is a condition Cavaliers are recognized as being predisposed to. A thick plug of mucus fills the middle ear behind the eardrum. Because it is hidden behind the drum, a standard look down the canal can appear normal, and diagnosis usually takes a CT or MRI scan.

Cavaliers also carry a predisposition to syringomyelia (SM), a condition in which fluid-filled cavities form in the spinal cord near the skull. Affected dogs may scratch at the neck, shoulder or ear region, often without making contact with the skin, which owners describe as "air scratching" or "phantom scratching." It can look exactly like an itchy ear, so persistent scratching deserves a vet visit.

The Cavalier's spaniel cousins share many of the same flap-and-feathering issues. Our Cocker Spaniel ear guide covers the larger version of the problem, and our list of 20+ breeds predisposed to ear infections shows where Cavaliers fit in.

Clues your Cavalier's ears need attention

Feathering hides early changes, so flip each ear over at brushing time and look and sniff. Watch for:

• Pawing at one ear, or a hind leg that scratches near the neck and ear, with or without touching
• Repeated head shaking, or dragging the side of the face along rugs and furniture
• A pink or angry red inner flap, or a canal that looks swollen
• A musty or sour odor coming from under the fringe
• Waxy buildup that is dark brown, yellowish or streaked with blood
• Clumped, wet or crusty fur at the base of the ear
• Shying away when you stroke the head or touch the ear
• Tilting the head, stumbling or not responding to your voice
• Frequent yawning, reluctance to chew hard treats, or sensitivity when the head is handled, which some Cavaliers with middle ear problems show

Seeing discharge? Our guide to what discharge color and texture can mean will help you describe it to your vet.

What usually sets things off

Allergic itch

Pollen, house dust mites, mold spores and certain food proteins can all inflame the skin of the canal. Irritated skin pumps out extra wax, and that warm, waxy environment invites yeast and bacteria to multiply.

Trapped water

Bath time, a dip in the pool, sloppy drinking and muggy summer weather all leave the fringe and canal damp. Under a heavy flap, that moisture can sit for hours.

Matted fringe and wax

Wax clinging to hair at the ear opening can harden into a plug that holds in moisture.

Hitchhiking plant material

Grass awns and burrs grab onto feathering easily. If your Cavalier comes in from the yard and suddenly shakes its head over and over, a seed may have slipped inside. Do not try to dig it out; let your vet remove it.

Ear mites

Mostly a puppy problem, or one picked up from a household cat. Expect fierce itching and dry, dark debris that a vet can confirm under the microscope.

Middle ear disease

PSOM is not something cleaning can reach, and you cannot see it at home. If your Cavalier has ongoing head discomfort, scratching that does not match what the outer ear looks like, or changes in hearing, ask your vet whether imaging makes sense.

When to see your vet

Home ear care is for healthy ears. A suspected infection needs a vet exam so the cause can be identified and treated properly. Book a visit if you notice:

• Pain: yelping, flinching or not letting you touch the ear or head
• Head tilt, loss of balance, circling or unusual eye movements
• Bleeding, or a swollen, puffy ear flap (possibly an aural hematoma)
• A bad smell together with discharge
• Redness or swelling that is getting worse
• Persistent scratching at the ears or neck, including air scratching
• Symptoms that have not improved after a few days, or keep coming back

Leave hydrogen peroxide, vinegar and rubbing alcohol in the cupboard. They sting inflamed skin, and no liquid belongs in an ear whose eardrum might be damaged until your vet has checked it.

A weekly ear routine for Cavaliers

A healthy Cavalier generally does well with one cleaning a week, plus an extra one after each bath or swim.

1. Set up. You need a dog ear cleaner, cotton balls or soft tissue, a small towel and a few treats. Leave the cotton swabs out; they push wax further in.
2. Check, then decide. Turn the flap back and inspect. Redness, swelling, odor or discharge means a vet call, not a cleaning.
3. Fill. Holding the flap upright, fill the ear canal with cleaner.
4. Massage. Rub the base of the ear gently for 60 to 90 seconds.
5. Shake. Step back and let your dog shake the loosened debris out.
6. Wipe. Clean the inner flap and the opening you can see with cotton or tissue, without poking into the canal.
7. Dry the fringe. Pat the feathering dry, then hand over a treat.

Grooming habits that help:

• Comb the ear feathering several times a week so knots do not form at the base.
• Have your groomer thin the hair on the underside of the flap and around the opening for better airflow.
• Feed from a narrow, deep spaniel bowl, or use a snood at mealtimes, so the fringe stays out of the food.
• After baths, towel the ears and finish with a hair dryer on a cool setting.

If you use EcoEars: EcoEars is a botanical dog ear cleaner made in the USA in an FDA-registered facility, with no antibiotics or steroids. The label directions are to fill the ear canal, massage the base of the ear for 60 to 90 seconds, let your dog shake, and wipe out the loosened debris. Use it twice daily for 10 days in a row, then weekly or as needed. It is for dogs 12 weeks and older and for dogs only, because it contains tea tree oil.

New to cleaning ears? Our walkthrough of how to clean your dog's ears and the tools you'll need has more detail.

Cavalier ear questions

My Cavalier's ears look clean, so why is it still scratching?

In this breed there are three common explanations: allergies, middle ear disease such as PSOM, and syringomyelia. Each looks different on an exam, so a vet visit is the way to sort them out, especially if the scratching has gone on for weeks.

Is PSOM the same as an outer ear infection?

No. Outer ear infections affect the visible canal; PSOM is mucus behind the eardrum, which is why imaging is often needed. A dog can have both.

Should the ear feathering be cut short?

It does not need to be. Thinning the hair under the flap and around the opening improves airflow, and you can keep the outer fringe for the classic look as long as you brush it regularly.

Does a Cavalier puppy need ear cleaning?

Get your puppy used to having its ears handled and looked at right away. Wait to use an ear cleaner until your puppy is old enough for the product you choose, and ask your vet to check the ears at puppy visits, since mites are more common at that age.