Flea Bite Allergy in Cats

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                      General Information



Signs of flea bite allergy result from the cat's hypersensitivity

(allergy) to flea saliva.  In an allergic cat, the bite of only

one flea may cause a serious problem.  Extensive skin damage may

result from the cat's biting, licking and scratching.  Though

flea bite allergy can be treated, it often recurs since:  a)

flea eggs may hatch up to 1 year after being deposited in the

environment;  b) most of the flea's life cycle occurs off the

cat;  c) your cat's environment may be contaminated with fleas;

and d) even an occasional flea bite can trigger the allergic

reaction.



Flea allergies are most troublesome in the summer and fall in

areas with cold winters and warm summers.  In warm climates or in

heated, flea-infested houses, flea allergy may occur throughout

the year.



In cats, the main signs of flea allergy are excessive hair loss

and small red papules with reddish-brown crusts.  Sores are most

prevalent around the neck, lower back, base of the tail, and

abdomen.



                 Important Points in Treatment



1.  Flea allergies usually worsen as animals age.  Signs may

    begin earlier in the flea season and last longer.  Also, skin

    reactions generally become more severe.



2.  Treatment includes flea control on the pet and in the

    environment, and suppression of the allergic reaction.

    Occasionally desensitization of the cat is attempted.



3.  Desensitization (allergy shots) to flea saliva is

    controversial.  In some cases, good results are achieved,

    while other cats fail to respond.  The doctor will discuss

    the advisability of desensitization for your cat.



4.  Recommended treatment:





        Notify the Doctor if Any of the Following Occur:



    * Your cat damages its skin by biting and scratching.



    * Your cat's skin becomes red, hot or puffy, or oozes fluid.



    * Your cat's condition recurs after treatment.



    * Your cat's general health changes.