Short answer: ear odor and redness in dogs are most often early signs of otitis (ear inflammation). Mild cases can often be managed with a 4-step cleaning routine using a proper ear cleaner, but more severe symptoms call for veterinary care.
Why does a dog's ear start to smell?
When moisture and debris build up inside the ear, bacteria or fungus can grow easily, and that growth is what causes the distinct odor. Breeds with floppy ears are especially prone to this since airflow is poor.
What order should ear cleaning follow?
① Apply an appropriate amount of pet-specific ear cleaner into the ear ② Gently massage the base of the ear so the cleaner spreads evenly ③ Let your dog shake their head ④ Wipe away only the visible debris with gauze or cotton. Follow this order.
Is it okay to use a cotton swab?
Inserting a cotton swab deep into the ear canal should be avoided — it can cause injury or push debris further in. Gently wiping only the visible area is the safer approach.
Is it okay to clean if there's already redness?
Mild redness may actually benefit from cleaning, but if the redness is severe or there's discharge, cleaning can actually cause more irritation — get a vet checkup first in that case.
What signs mean I should see a vet?
If your dog keeps shaking their head hard or rubbing their ear on the floor, if you see discharge or bleeding, or if the odor gets stronger, otitis may have progressed and needs veterinary care.
