Most veterinarians discourage flea medallions because they can dangle into a cat's water and contaminate it. Flea sprays and powders are available too, some of which are very good. Just make sure the product is designed for your cat and not for your house. Never treat your cat with more than one product at a time, and it's a good idea to ask your veterinarian to recommend flea products for your cat. In addition to treating your cat for fleas, you need to treat your home .
Sprays containing methoprene and fenoxycarb are effective.
These sprays prevent the larva and cocoons in your carpets and furniture from developing into adult fleas. Some flea foggers will kill both fleas and their eggs. However, you need to remove your cat from your house to do this. Whatever treatment you choose, make sure you read all directions carefully. Consult your veterinarian if you're unsure whether a flea product is safe.