As common as fleas are, the diagnosis of flea related problems can sometimes be difficult. Our pets can have fleas without being itchy. Conversely, itchy pets do not necessarily have fleas.

The itching caused by fleas is not just a result of their physical presence but an allergic reaction to flea saliva. Severity of the itching is partially a function of the number of fleas present but is primarily determined by how allergic the patient is. We see pets that are covered with fleas but not at all itchy. On the other hand, a single flea bite once a week can cause a severe allergic reaction in the allergic patient. Just because you don’t see fleas does not mean that your pet’s itching is not the result of fleas.

What should you do? Think prevention, not treatment. The more flea bites your pet receives the more allergic they can become. Apply Frontline Plus or Advantix monthly to all dogs. Cats with outdoor exposure should be treated monthly with Revolution since it also prevents heartworms.

The allergy can usually be managed with antihistamines, steroids, etc. but treatment will not be successful if flea bites are not eliminated.