A cat with flea allergy dermatitis may not have many, if any, fleas on their coat. (best-cat-art.com)
However, cats with flea allergy dermatitis can experience a tremendous amount of itching after only a few flea bites. (vetinfo.com)
Question: Years ago when I rescued my dog he had a severe case of flea allergy dermatitis and was constantly chewing and scratching himself. (1800petmeds.com)