Flea and tick treatments contain potent chemicals, so it's important to know some things before buying flea and tick products.
When using these products, always read the label and follow the directions.
Use flea and tick control products only on the animal specified by the product label. For example, dog products for dogs only and cat products for cats only.

Apply only the amount indicated. Do not apply to kittens or puppies unless the products says puppy or kitten treatment.

Monitor your pet for side effects or signs of sensitivity, after applying, particularly when using the product for the first time.

Look for allergic reactions generally occur once an animal has been sensitized. Many reactions will not be seen until the second application.

If your pet experiences any reaction, immediately bathe the pet with mild soap and rinse with LARGE amounts of water.

Consult your vet if your pet has a reaction.

Do not use flea and tick products on weak, aged, medicated, sick, pregnant, or nursing pets.