Dog Owner's Home Veterinary Handbook.pdf - Mr. Walnuts

The Throat
PHARYNGITIS (SORE THROAT) AND TONSILLITIS
THE MOUTH AND THROAT • 251
These two conditions have a common cause and thus often occur together.
In fact, sore throats usually do not occur in dogs as isolated infections, the
way they do in people. Most sore throats are associated with infections in
the mouth, sinuses, or respiratory tract. They can also occur with systemic
diseases such as parvovirus, distemper, herpesvirus, and pseudorabies. Dogs
with an anal gland infection may also have a sore throat from spreading the
infection while licking at their glands.
The signs of sore throat are fever, coughing, gagging, pain on swallowing,
and loss of appetite. The throat looks red and inflamed. A purulent drainage
may be seen coating the back of the throat.
The group A streptococcal sore throat (commonly known as strep throat)
that occurs in young children can produce mild or unapparent sore throat in
dogs and cats, who may then harbor the bacteria in the respiratory tract.
Although dogs usually get the infection from human members of their family,
and not vice versa, to eliminate the bacteria in households with recurrent
strep throat, consider treating pets as well as family members.
The tonsils are aggregates of lymph tissue located at the back of the throat
in dogs, as they are in people. They may not be visible unless they are
inflamed. This generally occurs as a secondary symptom of a sore throat.
Primary bacterial tonsillitis is rare. It occurs in young dogs of the smaller
breeds. Symptoms are similar to those of a sore throat, except that fever is
more pronounced (over 103°F) and the dog appears depressed. The tonsils are
bright red and swollen. Localized abscesses may be visible as white spots on
the surface of the tonsils.
Chronic tonsillitis with tonsil enlargement is caused by persistent infection
or by mechanical irritation from prolonged coughing, retching, or regurgitation
of stomach acid into the throat. Any dog showing signs of tonsillitis
should also be checked for anal gland problems, as grooming and licking the
anal glands can spread the infection to the mouth.
Treatment: Acute pharyngitis and tonsillitis respond to treatment of the
underlying condition. When a primary cause cannot be identified, treatment
involves giving a broad-spectrum antibiotic for 10 days. Feed a soft diet consisting
of canned dog food mixed with water to make a mush. Aspirin
relieves pain (see Over-the-Counter Drugs for Home Veterinary Use, page 571,
for dosage).
Enlarged tonsils must be distinguished from lymphoma and squamous cell
carcinoma—the most common cancers of the tonsil. This is done by biopsy.
Tonsillectomy for chronically inflamed tonsils is seldom necessary.