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Homemade Flea Killer for Indoors

| Updated September 26, 2017

Whenever your pets get fleas, you must resolve the problem as quickly as possible to prevent the fleas from transmitting tapeworms to your pets. Fortunately, several safe and effective natural home remedies can kill fleas and flea eggs. Save a significant expense and reduce the risk of side effects with homemade treatments over store-bought chemical options. Remain vigilant in maintaining a thorough cleaning regimen to remove fleas from your home permanently.


Combine 1 cup of diatomaceous earth with 1 cup of borax. Crush together dried rosemary, fennel, yellow dock, wormwood and eucalyptus in equal parts, then mix the powdered herbs with the borax and diatomaceous earth. Apply the powder directly onto your pet's skin daily. Sprinkle the mixture into your carpets, couches and beds throughout the house. Wait four hours, then your carpets, couches and beds.

Liquid Solution

Lay a white towel out on your floor, and set a small basin on top of it. Fill the basin with water, and add 2 oz. of organic soap to the water. Add 15 drops of neem oil to the water, and pour some of the mixture into a spray bottle. Lightly mist your pet every two hours to kill fleas on its body. Additionally massage this mixture into a lather on your pet two times a day for more severe flea infestations. Allow the lather to sit on your pet for 10 minutes before rinsing for optimal effectiveness. Keep the basin filled with this mixture as often as possible, and shine the beam of a flashlight into the basin. Fleas are drawn to the light and will jump into the basin and drown. Continue to make fresh preparations of this solution throughout the day for at least a month.

Flea Collars

Make a flea-repelling collar by dabbing essential oil blended with a carrier oil onto a standard pet collar. Five drops of essential rosemary, peppermint or cedar oil mixed with 2 tbsp. of almond oil will work effectively to keep fleas off of your pet. Essential oil blends are better suited for dogs; cats are more prone to absorbing essential oils internally through prolonged direct skin contact. If you choose to put the collar on your cat, use diluted neem oil in place of the essential oils.

Additional Cleaning

Vacuum your home, furniture and pet beds daily. Wash all bedding materials, pillows and slip covers every two days. Always empty the vacuum chamber and tubes after you vacuum to prevent fleas from breeding inside your vacuum cleaner and spreading back onto your carpets and furniture. Clean the components with liquid antibacterial soap and water after each time you vacuum to prevent this scenario. If you do not have enough vacuum bags to replace the bag each time you vacuum, spray the liquid flea-killing solution into the bag after each use instead. Flea eggs hatch in seven-day cycles, so you must perform all these routines at least once every six days for a full month to achieve completely successful treatment.