Flea prevention takes a little while to work. You can’t expect instant results. What you can do is properly use Frontline Plus in the right doses and treat your pet once a month over the course of several months. It will take about 5 months (roughly 3 treatments) for Frontline Plus to fully eradicate the problem. The key is persistence in your treatment regimen. Frontline Plus is a powerful product that offers protection against fleas within 30 minutes of application on your pet but does not offer protection against ticks. Keep in mind that Flea treatment for dogs in the form of pills is more effective than topical treatment.
Frontline Plus is an FDA-approved flea and ticks medication for dogs. It kills adult fleas on your dog within 18–24 hours of application, and it also prevents future flea infestations.
It’s important to know how long it takes for Frontline Plus to kill fleas so that you can make sure your pet’s treated in time. If you notice new fleas on your dog after a few days of treatment, there may be a few reasons why this is happening:
1) Your pet might not have been exposed to a lot of fleas before treatment.
2) Your pet may have been exposed to something other than fleas (like ticks) that aren’t affected by the medication.
3) The dosage might not have been high enough for your pet’s weight or size; talk to your vet about adjusting the dosage if this is the case (this will also help prevent future infestations).
The average adult flea will die within 24 hours after being bitten by a dog or cat, but it can take up to 48 hours for all of the fleas to be killed.
The length of time it takes for Frontline Plus to kill fleas depends on how many times your pet gets bitten and how long it takes for the product to work through the skin. Frontline Plus is a topical flea and ticks treatment that works by killing adult fleas and ticks on your pet. It’s most effective when you apply it to your dog or cat’s skin every month as directed by your vet.
How Frontline Works
Frontline Plus is available in three different formulations: one for dogs, one for cats and small dogs, and one for kittens. The dosage will depend on the size of your pet and how many pounds they weigh. For example, if you have a 25-pound dog, you’ll use one tube of Frontline Plus for Dogs when applying it to their skin.
It typically takes about 24 hours for Frontline Plus to kill off fleas and ticks once applied—but it can take up to 2 weeks before you see results from using this product.
Frontline Plus is one of the most popular flea treatments on the market. It’s easy to use, affordable, and it works fast. You can start seeing results as soon as 24 hours after application, but you’ll want to keep your pet out of the sun for at least 2 hours after application to avoid burns.
While you don’t have to wait until all of the fleas are gone before you reapply Frontline Plus, it’s recommended that you do so within 14 days of applying the first dose. This will help prevent reinfestation from new fleas that hatch from eggs that were laid before treatment began.
Why Do I Still See Fleas After Using Frontline Plus?
Fleas are a common pest in the United States, and they can be incredibly difficult to get rid of. If you’re using Frontline Plus, it’s important to remember that it takes time to work and that you may still see some fleas even when you think the medication has worked.
When you apply the medication, it takes about 24 hours for it to start working on adult fleas. It can take up to two weeks for all of the fleas to die after applying the medication.
So if you’ve applied Frontline Plus and are still seeing fleas, don’t panic. You’ll just need to keep up with your treatment plan until all of your pets are free from fleas again.
How Effective Is Frontline at Killing Fleas?
Frontline is a topical flea and ticks treatment. The active ingredient in Frontline is fipronil, which is a phenylpyrazole insecticide. It works by disrupting the nervous system of fleas and ticks, leading to death.
The effectiveness of Frontline depends on several factors, including the type of animal (dog vs cat) and whether or not you have a pet with long hair. For example, if your dog has long hair, it may be difficult to get the drug applied properly because it can be hard to rub it into their fur. In addition, cats are generally very sensitive to chemicals in general so it’s important that you follow all instructions carefully when applying Frontline to your pets.
What to Do if Frontline Doesn’t Work?
If you have tried Frontline and it did not work, don’t panic. There are several reasons that this might happen, and the good news is that there are some steps you can take to remedy the situation.
First, make sure that you have followed the instructions carefully. If you have left out any steps or applied too much of the product, it could be that your kitty isn’t getting enough of the active ingredient to work as intended.
Next, check with your veterinarian to see if there are any other medications or supplements that may interfere with Frontline’s effectiveness. If so, talk with them about what other options might be available for keeping your cat healthy. They may also want to examine your cat for fleas or ticks in order to rule out other possible causes of symptoms like itching or hair loss.
Finally, keep in mind that cats who were just recently treated with another flea medication may need more time before they become fully protected from parasites again after switching over from their previous regimen to Frontline Plus Flea Control For Cats.
Can Fleas Lay Eggs After Frontline?
Yes, fleas can lay eggs after the frontline.
Fleas are a common pest in households and pets. They are arthropods, which means they have an exoskeleton and multiple legs. They have piercing-sucking mouthparts and feed on the blood of mammals and birds.
In order to reproduce, fleas must first mate. After mating, females will lay eggs in clusters of between one to three hundred eggs at a time. The female can lay up to several thousand eggs during her lifetime as long as she is able to find a host animal.
There are two different types of flea eggs: nit or dog flea egg sacs (about 1 mm) and cat flea ovisacs (about 2 mm). The nit sacs usually appear grayish-white and are laid by both dog and cat fleas in small groups around the hair shaft of the host animal’s skin. Cat flea ovisacs appear tan or light brown when laid but turn darker within 24 hours after being deposited by their mothers onto various surfaces such as baseboards, carpets, or furniture, often near where their hosts sleep at night.
List of Flea Killers
Fleas are a plague on our dogs, and they can be difficult to get rid of. Here are some of the best flea killers out there.

Seresto Large Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Over 18 lbs. | 8 Months
Price : $63.98
Features :
- Vet-recommended, premium flea & tick protection for dogs & puppies without the price tag
- Long-lasting flea collar kills & repels fleas for 8 continuous months
- Seresto is the #1 selling non-prescription flea & tick brand, stocked by 8,000 vet clinics (Elanco Animal Health, data on file)
- Starts working within 24 hours to kill & repel fleas by contact so pests don’t have to bite your dog to die
- Hassle-free, non-greasy, easy-to-use flea & tick protection

Vet’s Best Flea and Tick Home Spray | Flea Treatment for Dogs and Home | Plant-Based Formula | 32 Ounces
Price: $17.19
Features :
- GENTLE PROTECTION: Vet’s Best Flea & Tick Home Spray uses certified natural ingredients to kill fleas, flea eggs, and ticks on contact.
- PROVEN EFFECTIVE: Whether facing an active infestation or applying for routine prevention, our spray is scientifically proven effective against pests but gentle enough to use around the whole family.
- CERTIFIED NATURAL OILS: Each steam-distilled essential oil is selected for its potent pest-fighting properties and is 100% Certified Natural.
- TOTAL HOME DEFENSE: Applies easily on surfaces, indoors and out, including dog bedding, crates, furniture, blankets, upholstery, carpets, outdoor surfaces, and more. Also gentle enough to be applied directly on dogs and puppies 12 weeks or older.
- MADE IN THE USA: Our products are proudly manufactured in the USA with quality domestic and internationally sourced ingredients.

Flea Trap Indoor 2Pcs,Flea Strap Flea Killer Trap Pad Bed Bug Trap with 2 Glue Discs Odorless Non-Toxic flea Light Bulb for Inside Your Home Like Fleas,Flies,Mosquitoes,Gnats,Moths
Price: $21.99
Features:
- 【Flea Traps for Inside Your Home】A flea dome trap can help attract fleas in your home, especially in areas you cannot spray. Keep your family and pets safe from fleas
- 【Effective Bed Bug Trap】The flea light trap for indoor utilizes incandescent light bulbs and a slight heat to simulate a warm blood host and attract the insects from up to 30m distance away.Once they enter the flea trap, they will be firmly stuck with the flea trap sticker and cannot escape to achieve the purpose of scientific trapping. It has a good effect on trapping fleas, mites, ant, fly, bed bugs, moths, mosquitoes, and other insects
- 【Safe & Eco-friendly】The flea traps for inside your home contain no poison or pesticides. Natural and completely odorless, it is safe to use around children and pets. All insects attracted by heat can be eliminated without the use of chemicals.And our flea catcher comes with 2 super adhesive refill discs. When the flea trap sticker is full of fleas or insects, you can replace it with a new flea trap sticker, which is easy to clean,so you don’t have to worry about how to clean up insects bodies.
- 【Wide use】The flea trap is suitable for indoor environments, such as bedrooms, living rooms, kitchens, and dining rooms. You can put it in any place with lots of fleas, and give you a clean and fleas-free home. At the same time, the flea trap will emit a soft light at night, but it will never be dazzling or too bright. It can be used as a night light to accompany you into a sweet dream.
- 【Super Grabber】Considered as one of the best flea trap products in the market, this flea trap will help you free from those pesky fleas and insects.
In Conclusion,
With the right dose, Frontline Plus can kill fleas in less than 24 hours. The product is safe for breeding and nursing animals, so it’s a great option for pregnant or nursing dogs. If you want to get rid of fleas in your home, try putting a few drops of lemon oil on a cotton ball and placing it in the corners of your house.