Why are you using flea shampoo? It can actually kill cats and cause seizures and even death in dogs. MUCH safer to use a Capstar to kill any fleas on the animal and then use a monthly preventative such as Frontline, Advantage, or Revolution afterwards.

DO NOT use flea shampoos or ANY flea preventatives/collars from the pet store or grocery store. They kill.

Capstar pills are very, very inexpensive and work for a full 24 hours, but begin to work within 30 minutes killing the fleas. They are very safe to use on cats and dogs.

If you want a cheaper alternative, use Dawn dish soap. It can be used on day old kittens.