There are several ways to kill fleas instantly. Here are some options:
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Oral fast-acting tablets: An oral fast-acting tablet that contains Nitenpyram is the safest way to kill fleas on dogs instantly.
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Flea shampoos: Topical products, such as flea shampoos, can kill fleas almost on contact.
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Over-the-counter flea medication: There are plenty of over-the-counter (OTC) flea treatment options that you can find either at your local store or online. These products typically range in how fast they start to kill fleas, from 30 minutes to a full 24 hours.
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Prescription medication: The fastest options for killing fleas with prescription medication are Comfortis or Trifexis, which also work as effective preventative medications. Both products contain the active ingredient spinosad, which will begin killing fleas within 30 minutes of ingesting the tablet.
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Essential oils: Cinnamon and clove basil are the most effective at getting rid of fleas, but lemon, lavender, and cedar may also work. Just apply a few drops of essential oil without diluting it near problem areas and the fleas will die when they come into contact with it.
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Diatomaceous earth: Fleas dry out and die when they’re exposed to diatomaceous earth. Take a pinch of DE and apply it in the corners of your room and along the baseboards. You can also sprinkle it around furniture or carpets.
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Hot, soapy water: Bathing your pet in hot soapy water with Dawn can kill adult fleas, but this is not a good long-term solution.
Its important to note that some of these methods may not be safe for all pets, so it's best to consult with a veterinarian before trying any new flea treatment.
