Canine Flea Allergy Dermatitis

By definition flea allergy dermatitis involves pruritus. Flea infestation may not refer to obvious presence of fleas but suggests that the dog may be reacting to a limited amount of flea exposure. The level of flea exposure may contribute to pruritus because of effects on the allergic or pruritic threshold and summation of effects. Flea control allows the amount of flea exposure to become low enough that clinical signs resolve.

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