If a pet still has fleas, many veterinarians will use the product more frequently than once monthly, sometimes as often as once every 2-3 weeks. However, this process is often considered to be “off label use,” and I would not use the product this way unless first speaking with your pet’s veterinarian.
Table of Contents
How soon can I use Frontline again?
The known safe answer is to wait the period of time the product is supposed to work, typically 30 days, before reapplying.
What happens if you reapply Frontline before 30 days?
If you are finding fleas on your pet even after applying your pet’s topical flea treatment, you might consider reapplying it early. However, this solution is not always recommended and may lead to an overdose in some rare cases.
Can you apply Frontline every 3 weeks?
Frontline recommends that you reapply every 30 days for best results in preventing fleas with both cats and dogs.
Can you apply frontline after 2 weeks?
Yes, if after two weeks the flea preventive you applied isn’t working, you can reapply flea treatment early, or switch to another brand.
Why are there still fleas on my dog after frontline?
A. The active ingredient in FRONTLINE (fipronil) kills fleas by affecting their nervous system, making them hyperactive before dying. These dying fleas often rise to the top of your pet’s haircoat, so the presence of visible fleas after treating your pet, is a sign that the product is working.
What happens if frontline doesnt work?
If you suspect it is not controlling your pet’s fleas, you may, in certain cases, be able to reapply it in as little as two weeks and try again. Speak to your veterinarian about this first if your flea medicine is not working. One Frontline alternative is to switch to another topical product.
What happens if you give dog too much frontline?
Common signs of toxicity from flea products containing organophosphates are diarrhea, vomiting, difficulty breathing, small pupils, muscle tremor, weakness or falling over, and drooling. Organophosphate toxicity can be rapidly fatal, depending on the ingredients and dose the pet is exposed to.
Why is frontline not working?
The main reason that Frontline may fail as a flea product is a large infestation of fleas being present in various stages. When there are eggs, larvae, and pupae/young fleas, Frontline is ineffective.
How do you tell if fleas are dying?
If you do see fleas and they are moving slow enough to catch โ success โ they are busy dying!
Why is my dog still itching after flea treatment?
It’s fairly typical after you’ve applied Itch Flea for there to be a period of hyperactivity amongst the fleas as the product takes effect, and this can cause an increase in itching. It should settle down though after 24 hours.
How long does frontline last on a dog?
How often should you flea a dog with Frontline? Frontline is effective for 4 weeks. For optimal protection from fleas and ticks with Frontline, you should therefore apply Frontline to your dog every 4 weeks.
How long before fleas are gone after treatment?
Adult fleas will be killed within a few days but the floor should not be vacuumed, swept or washed for at least two weeks after treatment because there will still be eggs which will continue to hatch.
What happens if fleas Don’t go away?
Control the environment โ Adopt control strategies including: Vacuum the carpet 2-3 times a week to remove eggs, wash pets blankets weekly (in the washing machine), spray the house, kennels and yards with an adult flea killer, fog the house to prevent larvae developing.
What do I do if flea treatment doesn’t work?
What to do if your flea treatment still isn’t working. It’s time to go and see your vet. Don’t be embarrassed โ your local veterinarian deals with fleas all the time and it is no reflection on your home or ability to care for your pet.
Does Frontline last longer than 30 days?
Not only does this treatment kill fleas, flea eggs and larvae, it also kills lice and ticksโincluding those that may transmit Lyme disease. Stored in your pup’s oil glands, this formula provides long-lasting flea and tick control, working non-stop for 30 days after application.
What if frontline gets on fur?
Don’t worry, it will eventually work its way down to the skin. For future applications, use the applicator tip to part the hair until you see skin then squeeze to apply the Frontline. You can reapply in 2-3 weeks but this would be considered “off label use”. Check with your vet before you do that.
Does flea treatment still work if on fur?
If you have a pet with thick fur, this can present a challenge. However, the medication won’t work correctly if only the hair follicles are involved โ it must be applied to the skin.
Can my dog sleep in my bed with fleas?
Although fleas tend to prefer dogs, they can hop around and bite you sometimes too. So yes, if your dog has fleas and sleeps in your bed, this could lead to a flea problem that sneaks up on you in your sleep, leaving you with lots of itchy bites in the morning.
Can fleas live in human hair?
First, is it possible for fleas to live in human hair? The short answer is no. There are more than 2000 types of fleas around the globe. However, there is no evidence that these insects can live on the human body or scalp.
How do you get rid of fleas in 24 hours?

Are fleas becoming resistant to frontline?
Flea Resistance to Medications Frontline products (Frontline Plus, Frontline Gold) and the K9 Advantix line are two of the better-known brands of topical flea preventatives that are reported to be losing effectiveness. These products have been in use long enough that fleas have adapted and become resistant to them.
Does vinegar get rid of fleas?
Does white vinegar kill fleas? Yes. In fact, all vinegar can kill fleas, including the most popular type, which is apple cider vinegar. Vinegar is actually used as a natural Pest Control ingredient for many other insects, like hornets, and ants.
Is Frontline Plus or gold better?
The only difference is that Frontline Gold kills fleas faster than Frontline Plus does. Frontline Gold has added a powerful third ingredient, pyriproxyfen which helps to kill the next generation of flea e…more. Both products require monthly applications and are safe to use in all dogs and puppies above 8 weeks of age …
Can you use too much frontline?
Signs and Symptoms of Flea Medication Overdose This can result in repetitive nerve discharges, or twitches and tremors, in affected dogs. So if a dog has a mild overdose of flea medication, symptoms, you may notice include twitching, excessive salivation, paw flicking, vomiting and diarrhea, and depression.