Pets Can Become Allergic to Flea Bites

Flea Allergy Dermatitis (FAD) is an allergic skin reaction to flea saliva. It can occur in both dogs and cats when a flea bites. Dogs and cats rarely get this form of allergy before six months of age. Usually, the age of onset is around three-to-six years of age. The primary clinical sign of this skin disease is severe itching, biting, and scratching, usually involving the hind end, especially at the base of the tail. Cats may also scratch around the head and neck region.

FAD is treated by preventing adult fleas from biting the pet. This is accomplished by using an adulticide (i.e. a product that kills adult fleas), such as a flea powder, spray, topical agent, or foam. Flea shampoos tend to be minimally effective in preventing fleas since most of the insecticide in the shampoo is washed off with the final rinse.

There are currently several topical adulticides available from a veterinarian that are applied directly onto the pet and that have been shown to be highly effective and very safe to apply. Your veterinarian should be consulted to determine which treatment option is best for your pet based on its lifestyle, activity level, and environmental contacts.

Reprinted with permission from www.animalhealthcare.ca