Indian River Animal Hospital
May News
Food allergies can develop at any time resulting in an
itching pustular skin condition. I
practiced equine medicine for ten years and then much to my surprise developed
an allergy to horse dandruff. Animals
that have been on the same food can suddenly develop an allergy to a component
of the food formula, for example chicken or corn. A new food formula must be found containing a protein the pet
has not been exposed to and consequently has not developed a sensitivy to, for
example: duck, venison, whitefish,
potato or even kangaroo! Lamb and rice
is a popular choice, however the supermarket brands often contain chicken fat
or chicken by products along with the lamb and rice. Read your labels.
Tree and weed pollens, grass and weed dust whether inhaled
or by physical contact, are also sources of allergens. Occasionally blood
samples will need to be analyzed to determine the source of the allergen.
Whatever the source, allergies cause severe irritation to
the skin (red inflamed moist tissue), which presents a perfect condition for
secondary bacterial and fungus infections. Occasionally a culture and
sensitivity will be required to specifically determine what the bacteria is and
the appropriate antibiotic to be used as a treatment.
Fleabite allergy is a big factor. The flea derives a blood
meal from the pet. In doing so, the flea injects an anticoagulant, which
contains a certain protein. This protein stimulates an allergic reaction and
the pet starts itching. Good flea control is mandatory in Florida due to the
heavy year-round flea infestation
There are two comon types of mange: Red mange (demodectic) and Scabies (Sarcoptic). These two mites invade the skin producing severe irritation, itching and infection.
Ticks attach and invade the skin resulting in an infection
at the site of the attachment as well as permanent hair loss due to destruction
of the hair follicle.
Autoimmune disease is a strange syndrome where the pet
develops an allergy to its own tissue. This results in pustules, itching, and
ulcerations. Blood test and skin biopsies may be necessary for diagnosis of
this condition.
Thyroxin is the hormone of the thyroid gland. Excess levels,
usually seen in cats, will cause course hair and weight loss. Deficiencies of
the hormone, often seen in dogs, will result in hair loss and course, brittle
hair.
Excess levels of the adrenal gland hormone (cortisol) will
cause thin, wrinkled skin with hair loss. Deficient levels of the hormone will
result in few hair and skin symptoms, but result in multi-organ dysfunctions.
Happy Mother’s Day and be sure to check our website
at www.irah.com