Fleas can be a nuisance that attack your pets and can quickly move in and pollute your living quarters as well. While there are a number of pet medications and applications that repel and kill fleas, these can be costly, and may contain toxins or irritants you won't want in your home.
A citrus bath will kill fleas on contact, without harming your pet or damaging the pet's fur. Gather four to five pieces of citrus fruit (oranges, grapefruits, lemons or limes). Use all of the same fruit, or make a scented combination by mixing as you wish. Slice the peels off of the fruit, and place peels in a pot of boiling water. Let simmer for a few hours on low heat, then let cool. Strain the solution into a bottle so no pulp is in the bottle, then place in the refrigerator. Use this weekly as a flea bath, rubbing the citrus solution into your pet's coat. Rinse the solution off with a stream of clean water.
Rubbing alcohol kills fleas on contact, making it the perfect homemade flea killer. In a dish, mix 2 cups warm water, 1/4 cup isopropyl rubbing alcohol and 5 drops liquid dish detergent. Rub this solution directly onto the pet's dry coat, using as a dry shampoo. The alcohol will kill fleas while the dish detergent creates a lather that can be applied easily. Rinse as normal.
A vinegar solution will also kill fleas on contact. To create a pet shampoo, mix 2 cups water, 1 cup white vinegar and 5 drops liquid dish detergent. Scrub the pet with this solution, then rinse with clean water. This will instantly kill all fleas, plus the light vinegar scent left behind will repel new fleas. The vinegar smell will be mild for a day or so following this shampoo application, but works wonders in killing fleas naturally.