Dogs
Recurrent ear inflammation can be connected to underlying allergic skin disease.
SYMPTOM → WHAT DO I DO?
Head shaking or ear scratching
Look for odor, redness, discharge, head tilt, balance changes and pain around the ears.
CALL YOUR VETERINARIAN PROMPTLY
READ THIS FIRST
Observations can help your veterinarian. They cannot rule out an emergency.
Contact an emergency veterinary facility immediately for difficult breathing, collapse, ongoing seizures, inability to urinate, major bleeding, abnormal gum color, sudden severe abdominal swelling or rapidly worsening weakness.
What could be behind this symptom?
These are possibilities, not a diagnosis. The right explanation depends on the examination, species and medical history.
- External-ear inflammation, infection or allergic skin disease.
- Ear mites, foreign material, a ruptured eardrum or deeper ear disease.
- Moisture, trauma or an ear-flap hematoma.
Head shaking may relate to ear irritation, skin disease, foreign material, or another problem. The pattern and accompanying discharge, scratching, pain, or imbalance guide concern. Ear appearance alone cannot determine the organism or eardrum condition. Avoid inserting tools or applying a previous prescription before assessment. A new head tilt, severe pain, facial change, or loss of balance can involve deeper structures and requires prompt veterinary advice.
Inflammation is the body's response to irritation or injury. It can produce swelling, discomfort, and changes in how an organ works, but the word does not identify the cause. Infection, immune activity, trauma, and other processes can all cause inflammation. This distinction matters because an antibiotic treats susceptible bacteria, while inflammation caused by a different process needs a different plan. A temporary improvement in redness or discomfort does not, by itself, establish which cause was present.
An infectious illness depends on both the organism and the animal's ability to resist it. Exposure does not always produce the same severity of illness in every animal. Age, previous immunity, nutrition, stress, and concurrent disease can influence the outcome. The infection may also cause complications that need treatment separately from the organism itself. For example, correcting fluid loss or supporting breathing can be essential even when a targeted medicine has already been started.
Similar-looking skin changes can arise from parasites, infection, allergy, injury, or another underlying problem. Sampling the affected area can help separate those possibilities. Depending on the lesion, the veterinarian may examine cells, take scrapings, culture organisms, or obtain tissue for a pathologist. The purpose is to identify what is driving the damage, not just describe the redness or hair loss. Previous creams, cleaners, and medications are worth reporting because they can change the appearance and sometimes the usefulness of samples.
What can you safely check at home?
Write down what you see and bring photographs or video only when doing so does not delay care.
- Which ear is affected and whether odor, discharge or swelling is present.
- Head tilt, stumbling, facial asymmetry, itching elsewhere and pain.
- Recent swimming, grooming, ear cleaning or new medications.
The most useful home observations compare an animal with its own usual pattern. Record intake, output, weight where practical, activity, and comfortable function at consistent times. Normal variations differ between species and life stages. A brief record can reveal a trend that is difficult to remember accurately or reproduce during an appointment. It also helps assess treatment response. Sudden serious changes still need immediate advice; collecting a perfect record should never delay care.
Avoid actions that can make things worse.
- Do not insert cotton swabs or pour peroxide, alcohol or essential oils into the ear.
- Do not reuse another animal’s ear medication or old prescription drops.
- Do not clean an extremely painful ear before veterinary guidance.
When should you contact your veterinarian?
- Arrange an examination for persistent head shaking, discharge, odor or repeated infections.
- Mention balance changes, previous allergies and medications already used.
A care plan is easier to follow when expected changes are concrete. Ask which signs should improve, what ordinary functions should return, and how soon the team wants an update if that does not happen. Some problems need repeat measurements or examination even when the animal looks better. Record changes consistently and report new signs separately. A recheck evaluates response, complications, and treatment safety, rather than simply deciding whether to repeat the original prescription.
Get emergency help immediately if you see:
- Sudden head tilt with inability to stand, severe neurologic changes or collapse.
- Rapid ear-flap swelling, significant bleeding or severe pain after trauma.
The same symptom can mean different things in different animals.
Cats
Ear mites and other causes require examination; medication depends on the eardrum and diagnosis.
Rabbits & small mammals
Head tilt or loss of balance can reflect serious ear or neurologic disease.
TRUSTED SOURCES
Sources behind this guidance
American Veterinary Medical AssociationFirst aid tips for pet owners and limits of home care ↗Merck Veterinary ManualVeterinary professional and pet-owner disease references ↗Merck Veterinary Manual: urinary obstructionWhy urinary blockage in cats requires immediate veterinary attention ↗
These educational resources support a conversation with your veterinary team. They do not replace examination, diagnosis or species-specific emergency care.