Ron Hines
DVM PhD 4/24/06
One of the most common problems that bring pets to a
veterinarian are ear infections. All begin suddenly, but by the time they get to
me they are usually chronic condition. All ear problems have an underlying
cause, which must be determined. Simply treating the ear for inflammation and
infection guarantees that the problem will reoccur.
1) Ear mites are the
most common cause of itchy and infected ears in young puppies, kittens and
ferrets.
Youngsters obtain these pinhead sized cream-white, spider-like
parasites from their parents as the nestle with them and nurse. During the first
two month of life, the ears rarely appear dirty and there is no signs that the
mites are present. However, by the third or fourth month a brownish "coffee
grounds" material begins to appear within the ear. These youngsters rarely have
itchy ears yet. If these mites are discovered early, a few drops of
permethrin-containing liquid or even baby or mineral oil placed in each ear and
massaged downward will cure the problem. If the problem is left untreated, the
delicate skin lining the ear canals thickens and chronic changes occur that
sometimes persist throughout the life of the pet. These ears are best over
treated when they are discovered to try to return the ear canal lining to its
normal condition. After a product is used to kill the mites, a bland antibiotic
and steroid- containing ointment should be used daily for several weeks. I can
provide you with suitable medicines over the Internet. Cleaning of the ear canal
is best left to a professional and may not be necessary if proper medicines are
used. You should just clean the outer portion of the canal that you can see with
a Q-tip.
2) Dogs with floppy ears are naturally predisposed to ear
problems because of poor circulation within the ear canals, buildup of humidity
and the tendency for many floppy-eared dogs to have hair growing within the ear
canals. These breeds include spaniels, springers, Labrador and golden
retrievers. Retained water in the ears after swimming – especially in swimming
pools is an added cause. Plucking this hair from within the ears with your thumb
and forefinger can help. So will trimming the hair on the underside of the
earflap and surrounding the ear. Several liquid ear-cleaning products are on the
market containing boric and salicylic acids, eucalyptol, and propylene glycol.
They generally come in 8 or 16-ounce containers. About 10 drops should be placed
and massaged into the ear canal after these dogs swim or on a weekly basis in
floppy-eared dogs prone to ear problems. Some of these cases are compounded by
skin or food allergies or the presence of fleas anywhere on the dog. In chronic
cases, periodic ear medications containing steroid and antibiotics may be
necessary. It is best to alter the formula (Brand) of ear ointment or drops used
every few months to prevent bacteria present from becoming immune to a
particular product.
3) Skin allergies in pets often extend into the ear
canals. These cases are treated similarly to floppy-eared problems. When a dog's
skin itches, its ears also itch. So the cause of generalized itchiness needs to
be found and treated. This might include strict flea control, limiting the pet's
access to damp moldy areas, discontinuing brands of skin-care, perfume,
household cleaning agents and dietary management.
4) Excessive coarse
hair in the ears of certain breeds, particularly poodles, predisposes them to
ear problems. Frequent plucking of this hair is important. Any residual
inflammation of the ear is treated in the ways previously mentioned.
5)
Sometimes, despite proper treatment, ear problems continue and eventually result
in a narrowed ear canal with populations of antibiotic- resistant bacteria and
yeast. These ears can usually be managed for the pet's entire life without
surgery. In some cases such as uncooperative pets or severe recurrent
infections, surgical re-direction of the ear canal downwards solves the problem.
If the eardrum has already been lost and infection has spread to the middle or
inner ears, total ablation (closure) of the ear is preferable. These pets then
go on to lead happy lives even though their hearing is
diminished.