Flea allergy dermatitis is the most common allergy in dogs and cats. It is caused by flea bites, specifically skin reactions from the saliva of the flea. It is a very itchy disease and predisposes to the development of secondary skin infections.
Oddly enough, most animals with flea allergy have very few fleas – because they are so itchy, they groom themselves excessively, eliminating any evidence of fleas. Click Here To Read More