Flea bite allergies
An allergy to flea bites is the most common skin disease diagnosed in pets. Some cats can be infested with fleas and hardly notice, but most cats become itchy and can suffer hair-loss, scaling, and even areas of self-induced trauma. Cats severely allergic to flea bites will have large areas of hair loss and be extremely itchy.
The hair loss is most common over the hind end, back legs, and neck, but can be found anywhere. Many of the severely allergic cats also get a bacterial infection
Many are reluctant to treat their cats for fleas, especially if the cats live indoors only, but fleas can get into the house with other pets, on us and our clothes, and even on their own accord. A sensitive cat only needs one or two bites for a problem to flare up, and if he or she eats the flea the owner might never even see it.
The flea life cycle consists of the adult flea, egg, larva, and pupa. the adult fleas a human actually sees usually makes up less than ten percent of the actual fleas present.
There are many options for flea prevention and control. Discuss with your veterinarian. If your cat is very allergic, you may also need antihistamines and/or antibiotics to combat bacterial infections. Vacuum your home often and wash your pets' bedding. You must not only kill any adult fleas, but also eliminate any eggs.