Dogs are commonly bothered by
allergies. Certain breeds such as terriers, cockers, beagles,
golden retrievers and Dalmatians are predisposed to allergies.
Allergic dogs do not sneeze or have runny noses like people do.
Dogs with allergies have symptoms of excessive itching and
scratching of their feet, ears, belly, or any reachable area. Left
untreated, the itchy sensation and inflammation of the skin is
likely to lead to self-trauma by the rubbing, licking and chewing.
This can subsequently result in extensive and severe damage to the
skin and infection.
Allergies are caused by allergens
For dogs their are three main types of allergens: Inhaled
substances (pollen, mold, dust), certain ingredients in foods, and
flea saliva. Once your pet is exposed to an allergen, a sensitivity
is established, causing all future exposures to the allergen to
cause an inflammation reaction.
The most common allergy is the
result of flea bites. The pet becomes allergic to the protein in
the saliva of the flea. This reaction can occur after only one flea
bite. Many times, no fleas will be on the pet when examined,
however, the intense biting and itching occurring near the base of
the dogs tail is a giveaway.
Allergic reactions to inhaled
substances begin to appear at 6-24 months of age. Usually, the
first experience with an inhalant allergens coincides with plant
pollination. In time, however, seasonal patterns may be lost as the
patient becomes sensitive to dust and other materials. Ragweed and
grasses are among the most potent pollens causing allergies.
Food allergy is the least common but
most overlooked cause of allergies. Food allergic dogs develop this
sensitivity against a particular item in their diet. The most
common allergens in food are corn, meat, milk, whey, gluten, and
soy. Dogs suspected of being food allergic need to be placed on a
hypoallergenic diet for a minimum of 6-10 weeks and the response
observed. Hypoallergenic diets have novel food groups such as lamb
and rice as the main ingredients and lack any suspected allergens.
Food allergies can only be diagnosed by a food trial.
Inhalant allergies and flea
allergies can be confirmed by skin testing. In this test, very
small amounts of the allergens which are suspected to be bothering
your pet are placed within the skin. Based on the skin reaction,
and history the veterinarian can tell you which allergens are most
likely bothering your pet, and treat accordingly.
What can be done to give my pet relief?
- Avoidance and reduction of
allergens is important. It is most helpful in food allergies. In
inhalant allergies, feathers, aerosols, and smoke are some examples
of environmental allergens that can be reduced or avoided.
- Medicated shampooing and
oatmeal conditioners used regularly help decrease itching and skin
inflammation.
- Topical sprays, ointments,
and creams containing anti-pruritics, cortisone and anesthetics
give some relief.
- Antihistamines-these may
prescribed for relief of symptoms during minor or short
episodes.
- Corticosteroids- these are
prescribed for control of more severe signs. The relief can be
dramatic. However, their side effects limit these drugs to careful
considered use.
- Hyposensitization- this
method is prescribed for those patients whose allergies are year
round and whose symptoms are not controlled by the use of
antihistamines, or corticosteroids in reasonable amounts. This
procedure involves giving small doses of the offending allergens to
the patient in gradually increasing amounts. After a period of time
these allergy shots reduce the sensitivity to the allergens without
undesirable side effects.
- In the treatment of allergic
disorders, therapy may vary widely from patient to patient. Owner
participation in the diagnosis and treatment is essential for
success. It is important to get proper medical attention as soon as
the itch starts Prompt treatment will stop the reaction and prevent
the skin lesions from becoming more severe.