Give your pet a bath using a natural, pesticide-free pet shampoo. Let the suds sit on your dog for a few minutes to drown the fleas. After the bath, most of the fleas will have drowned and will be dead, but the eggs will still be alive.
To kill the eggs and capture any remaining fleas, use a flea comb. A flea comb is a fine toothed comb that can be purchased in pet supply stores. The fleas and flea eggs get stuck in the teeth of the comb. When using the flea comb, have a cup of water nearby to dip the comb into whenever there are fleas or flea eggs in the teeth of the comb. Rinsing the comb off in the cup of water will contain and drown the fleas and prevent the eggs from hatching.
Thoroughly comb every part of your pets body, making sure to be gentle so you don't hurt your pet's skin with the pointy comb teeth.
Comb your pet with the pet comb daily until there are no more fleas or flea eggs.