Treatment FAQ

why does my dog have fles after a year without treatment

by Mr. Ulices Kilback DDS Published 3 years ago Updated 2 years ago

Not treating often enough
Fleas go through a life cycle of egg, larvae, pupae and adult. Most flea treatments just kill adult fleas, but fleas can continue to emerge for months after you think an infestation has ended. When a newly emerged female flea finds a host, she can lay eggs within one day.
Feb 19, 2018

Full Answer

Why is my dog still scratching after flea treatment?

Provided a thorough approach to flea treatment using appropriate products has been undertaken then if your pet continues to scratch there are likely to be other factors contributing. These may include allergies or intolerances to food substances, cleaning products and or an underlying medical condition.

Does my dog have fleas or something else wrong?

He hasn’t got fleas! Dogs do occasionally scratch, but if it’s frequent, incessant or distressing then something is amiss. Some dogs will lick or nibble rather than scratch. Many do this in private so watch out for red, sore skin, bald patches, or brown saliva staining where the fur has been licked.

What causes flea allergies in dogs?

It is the saliva from flea bites on dogs that is actually believed to be the cause of the allergy or sensitivity. The flea life cycle includes the adult flea, egg, larva and pupa. Adult fleas are the ones that bite because they cannot survive long without feeding.

Can fleas cause lesions on the back of a dog?

Typically, dog flea allergies cause these problems on the back half of the dog; however, dogs that are allergic to fleas can have a reaction that causes lesions anywhere on the body. Importantly, fleas or flea dirt may or may not be visible.

What happens if a dog has fleas for a long time?

Your dog's constant scratching may lead to visible patches of hair loss and reddened, irritated skin. Fleas may also cause skin allergies and can transmit other parasites, such as tapeworms, to your dog.

What happens if you don't treat fleas on dogs?

Left untreated, fleas can multiply rapidly and make your dog seriously ill. That's why it's important to check your dog for fleas on a regular basis and act quickly to eliminate any outbreaks that occur. Some dogs are severely allergic to flea saliva and can experience extreme discomfort even from a single flea bite.

Why did my dog get fleas out of nowhere?

Your dog will most likely pick up fleas outside during contact with other animals, be they pets or wildlife. Dogs are sociable creatures, and fleas can jump from the pup they met in the park to your pooch or even from other pets. Dogs love to investigate open spaces where wild animals carrying fleas are also present.

Can fleas come back after 2 years?

I learned first hand a few years ago that getting rid of fleas is no easy task. It sounds simple enough, but the problem is they have a tendency to keep coming back. After 20 years of owning pets I'd never had to deal with them before.

Do fleas eventually go away?

Will Fleas Go Away on Their Own? The short answer is no, they won't! Fleas feed and reproduce on dogs, cats, and other pets with substantial hair, fur, or feathers. They are parasites that need blood hosts to survive, so they will jump around all the potential hosts in your home to find one.

How many fleas on a dog is considered an infestation?

As few as 20 fleas might mean your pet is infested, while the most could be between 200 to 300. Ignoring a few fleas can quickly lead to an infestation on your dog and in your home,2 because two adult fleas could lead to hundreds of eggs and pupae. Fleas start feeding on blood within minutes of landing on your pet.

What kills fleas on dogs instantly?

Commercial Products from Your Veterinarian The most common product used to kill fleas on dogs instantly is Nitenpyram, more commonly known as Capstar. This single-use tablet is administered orally and kills fleas within 30 minutes.

Can dogs get fleas even if they have been treated?

Most flea treatments just kill adult fleas, but fleas can continue to emerge for months after you think an infestation has ended. When a newly emerged female flea finds a host, she can lay eggs within one day. Regular treatment is the key to keeping fleas at bay, but bathing your pet does nothing to prevent fleas.

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.

How long can fleas live in carpet?

two to three monthsOn average, a flea can live for two to three months in the carpet. But without intervention, they can stay in the carpet without end if they have a host. If a blood meal isn't consumed the flea may only survive for a few days. Flea eggs live for two to three days before hatching.

Can fleas live in carpet?

Flea larvae can lurk in the carpet for months feeding off the dried blood and feces of the adults on the host. High pile carpets are the perfect hiding place for fleas. While looking for hosts, the pests can leap up to seven inches from the ground.

How long does it take to get rid of a flea infestation?

Get Fleas Out of Your Home You also need to determine how to get rid of fleas in your home. This requires patience. It can take as long as three-to-four months to get rid of an infestation, as it takes this long for all of the fleas in your home to go through their life stages.

What to Do If You Spot Fleas on Your Pet

If you've discovered that your dog or cat has fleas, there are a few things you can do to provide your pet with immediate relief.

Understanding The Flea Life Cycle

In order to understand how and why treatment options work, we must first understand the flea’s life cycle since the various modern treatment and pr...

Prescription Flea Medications

There are a wide variety of flea products on the market today, but the newer prescription products are finally taking the frustration out of flea c...

How to deal with fleas in dogs?

The best way to deal with fleas is prevention. Flea and tick preventatives kill fleas that come in contact with your dog, preventing your pup from bringing them home in the first place. There are several options out there, from flea collars to topical liquid applicants and pills.

How long does it take for a dog to get rid of fleas?

You also need to determine how to get rid of fleas in your home. This requires patience. It can take as long as three-to-four months to get rid of an infestation, as it takes this long for all of the fleas in your home to go through their life stages.

Why does my dog scratch his skin?

bathing. shampoo. parasites. Fleas are a nuisance. These tiny, blood-sucking parasites irritate your dog and infest your home — often before you realize that fleas have moved in. Many dogs are allergic to flea bites, which can cause intense scratching, red and flaky skin, scabs, hot spots, and hair loss.

How many eggs can a flea lay?

Fleas go through four life cycle stages: Egg. Larva. Pupa. Adult. The adults live on animals like your dog, where they digest blood and lay their eggs. One female flea can lay up to 2,000 eggs.

What to do if my dog has ridden in my car?

If your dog has ridden in your car lately, you should vacuum the seats. Continue to treat your dog and any other pets with a monthly preventative. During flea season, don’t let your dog interact with strange dogs and be sure his puppy playmates are free of fleas. 4.

What to use to treat fleas?

Choose and apply an environmental flea control spray or fogger that will treat all stages of fleas, or call a local exterminator.

How long do fleas stay in a dog's cocoon?

During the pupa stage they form cocoons, where they wait for several days or up to one year — preferably for the fleas in the comfort of your carpet, sofa, or bed — until a warm-bodied host appears. Then they hatch, become adults, and infest their animal hosts – such as your dog.

How to tell if a dog has fleas?

They dislike light, so your best chance of spotting fleas on a dog is to look within furry areas and on the belly and inner thighs . "Flea dirt" can also signal that there are fleas on a dog. Flea dirt looks like dark specks of pepper scattered on the skin’s surface.

How long does it take for a flea to complete its life cycle?

Under optimal conditions, the flea can complete its entire life cycle in just 14 days. Just think of the tens of thousands of the little rascals that could result when conditions are optimal.

What is a non-prescription flea treatment?

These nonprescription flea products include flea shampoos, flea powders, flea sprays, flea collars, oral flea treatment and spot-on products. Many veterinarians are reporting that their patients still have fleas after use of these over-the-counter products, but there are also good reviews from pet parents for some of these products.

How long does it take for a flea killer to work?

Bravecto (fluralaner) begins to kill fleas within two hours and lasts for three months, while products containing spinosad (Comfortis, Trifexis) begin to work within 30 minutes and last for one month.

How do fleas survive?

They can survive quite a long time, waiting until environmental conditions and host availability are just right. Then they emerge from their cocoons when they detect heat, vibrations and exhaled carbon dioxide, all of which indicate that a host is nearby. The newly emerged adult flea can jump onto a nearby host immediately.

How long do fleas live on their host?

The various flea stages are quite resistant to freezing temperatures. The adult female flea typically lives for several days to weeks on its host.

How long does it take for fleas to live?

The life cycle can take anywhere from two weeks to a year.

How do you know if your dog has fleas?

It can be very difficult to tell whether your pet has fleas. Unless they are allergic, many pets will carry a small flea burden without any outward signs. They might itch more than usual, or chew the base of their tail, but many will simply put up with it and not behave any differently to normal. You might see fleas on your pet, but unless they have thinning or white fur they can be very difficult to see. The most obvious sign in most pets is a dusting of dark dandruff, or ‘flea dirt’, but even this can be hard to see without a flea comb.

How long does flea protection last?

Some flea products are tablets. These can vary from single-day killing power to three months protection depending on the active ingredient, so be sure you know what it is that you’re buying.

What is flea dirt?

Flea dirt is flea poo. It is produced by the adult fleas whilst they feed off your pet. They jump onto your pet to feed, and back off again when they’re done- one of the reasons it is rare to see fleas on your pet. They spend the rest of the time living in your house- in your carpet, between your floorboards, under furniture, or inside curtains- where they lay eggs which hatch into larvae. These larvae cannot jump, so they depend on finding food in the environment. They eat the eggs of other fleas, as well as the flea dirt. When it comes time for them to moult into adults they cocoon themselves in dirt, dust, and hair, and emerge days to months later ready to feed on any passing mammals. This pupal stage is well protected and they can remain in their pupae for several months if they want to, making an established infestation very difficult to clear.

Do pets need flea treatments?

However, the majority of pets do benefit from flea treatments, even if they don’t appear to be infested with fleas. It is also far easier- and less expensive- to prevent an infestation than it is to treat one.

Do flea spot ons kill fleas?

The majority of the spot-ons available from the shops and pharmacies only repel fleas, they don’t kill them- they are therefore no use when the pet and house are already infested. Those flea-killers available from the pharmacy are often ineffective due to incorrect use or resistance- another reason it is sensible to talk to us about which products ...

Can flea collars be used on cats?

The majority of flea collars provide a weak repellent effect and are not usually much use in preventing or removing an infestation. They may also be unsafe for cats if they don’t have a quick-release function. If a collar is the only way you can protect your cat- perhaps they are semi-feral and anything that needs to be re-applied regularly is a problem- then please ask us about the best products to use- we are more than happy to advise.

Do you need to treat fleas and worms with a vet?

It is best to discuss preventative flea and worming treatments with your vet in order to get the right product for you and your pet. Some low-risk pets might not need year-round treatment or might get on better with a different product to make treatment easier.

What is flea allergy in dogs?

2 When a flea feeds, it injects its saliva into your dog’s skin. This saliva contains enzymes, peptides, and amino acids.

How long does it take for a dog to react to flea saliva?

Some dogs have an immediate hypersensitivity to it within 15 minutes, while others have a delayed reaction that takes 24-48 hours. Dogs with atopic dermatitis are more likely predisposed to developing flea allergy dermatitis (FAD). 1.

What is the most common parasite in dogs?

Fleas are the most common external parasite found on dogs and cats worldwide. Flea allergy dermatitis (known as FAD) is the most common dermatologic disease in domestic dogs in the United States. A study has shown a 13% increase in FAD in dogs over the last decade. 1. It can be a very frustrating condition for you and a very uncomfortable condition ...

What tests can be done to determine the cause of a flea allergy?

Tests can also be done to determine the underlying cause of the allergic reaction. Vets use blood tests and skin tests for flea allergies.

What meds do dogs need for FAD?

Most dogs with FAD need more help, and you can talk to your veterinarian about the need for steroids or other allergy meds such as Apoquel or Cytopoint.

Why does my dog have hair loss?

When dogs feel flea bites, they often chew and bite at their rear by their tail and/or jump up from a resting position. If you see itching in your dog, and it leads to hair loss on the middle of the back to the tail base, you need to think flea allergy dermatitis. The hair loss can spread all over the body, up to the head and neck if left untreated.

How long does it take for Spinosad to kill fleas?

You can use a product containing Spinosad to kill all fleas on your dog within 30-60 minutes to give the quickest relief. Then you can follow up with a product that lasts 30-90 days. Once the fleas are dead, it is a good idea to bathe the dog to get off all of the dead bugs and their excrement.

How many times a day can a dog bite a flea?

If your dog is allergic to flea bite saliva (flea allergic dermatitis ), you don’t need many fleas for your dog to itch. As one flea can bite up to 400 times a day, a few can cause lots of irritation.

Why do dogs have cutaneous reactions?

Cutaneous adverse food reaction (“Food Allergy”) is due to an allergic reaction to certain foods, that usually occurs all year round. They have very similar signs so are hard to tell apart. Many dogs suffer a mixture of allergies, complicating things further.

How old is a dog when it starts itching?

Usually, skin changes and itching are generalised, affecting the tummy and face more often, but can be local. Food allergies are more likely if your dog is less than 1 year old, but can happen at any age. They cause gut signs in one third of dogs. Atopy usually starts between 6 months and 3 years old.

What is it called when your dog itch?

Itching (technically called pruritus) is a sign, not a diagnosis or specific disease. It’s probably the most common reason for owners to take pets to the vet’s, making up a large proportion of our consultations. Fleas are elusive and VERY common. In warmer weather, flea eggs develop into adults quicker.

How do you know if your dog has an allergic reaction to your skin?

It may be the first sign that your dog has allergic skin disease. Bacterial infections often appear in humid areas of the body like the ears, feet and groin as circular scaly patches, pimples or oozing sores but can be general. Yeast infections tend to be more greasy and generalised and can affect ears.

Why does my skin itch?

The most common causes of itching are parasites, infections, and allergies.

What to look for when your dog is scratching his ears?

If your pet is scratching only its ears you’ll need a vet to look down the ear canals, checking for inflammation, infection or foreign bodies such as grass seeds.

How to reduce the side effects of allergens on dogs?

Bathing and Brushing: doing these two things to a dog on a regular bases can greatly reduce the negative side effects that allergens can have on the dog.

Why does my dog have dry skin?

Environmental and nutritional factors, specifically cold weather and a lack of fatty acids in the dog’s diet, can cause a dog to develop dry skin. Dry skin is especially common in dogs that reside in areas with low humidity.

How to get rid of dog itch?

Change Dog’s Diet: the first step in this process is often an elimination diet that will allow the owner to determine which specific food (s) the dog is allergic to, and then remove any food (s) that the dog is found to be allergic to, or try some of the best foods for itching (which often do not include common allergens).

What are some allergens that dogs can get?

The list of potential dog allergens includes, but is not limited to: carpeting, blankets, dust mites, mold spores and pollen in the air, plastic food dishes, furniture stuffing and ornamental plants, as well as a number of pesticides that may be used outside, plants in bloom, weeds, and trees. Your dog having an allergic reaction ...

Why does my dog scratch his ears?

Your dog having an allergic reaction to an environmental factor will itch and scratch all over their body including their face and ears, and will often lick and chew their paws.

What is the best medicine for dogs with allergies?

Antihistamines: given orally to a dog, this medication can help to reverse and reduce some effects of the histamine that a dog releases internally in an allergic reaction. Atopica: this is a newer medication that has been shown to have positive results in helping dogs relieve symptoms of allergies.

Why does my dog lick his paws?

W hen a dog is itching, scratching, chewing, or licking themselves nonstop, the first cause of our pet's discomfort that we often think of is fleas. However, other than fleas, there's a wide variety of other issues that can occur in dogs that may cause this compulsive itching. If fleas have been eliminated as the reason for your dog’s itch ...

How to treat fleas on dogs?

How to treat the flea problem? I would recommend using a veterinary flea product either in the form of a spot on (applied to skin at the base of the neck), impregnated collar or a spray directly on your dog. It is however really important to treat any in-contact animals not just dogs but cats too.

How to tell if a dog has fleas?

Gently part your pets fur and search through close to the skin, fleas are a reddish/brown colour and quickly move away from the light. It can be easier to find fleas on the underside of your pet as the coat is naturally thinner here. It is often easier to see the flea dirt in your pet’s coat than the actual fleas.

What does flea dirt look like?

Flea dirt is the waste product produced by fleas and when dry it looks like little black specs; however if you wet it these black specs turn red as they contain digested blood. This brings us to the ‘wet paper test’, we comb through your pet’s coat and collect the debris onto a piece of wet white paper, if there is flea dirt present there will be small red dots visible where the flea dirt has dissolved in the water. The wet paper test helps to distinguish between flea dirt and just dried mud that may be on your pet’s coat.

Why does my dog's skin get itchy?

Dry flaky skin may well be as a result of scratching due to flea infestation , but can also be affected by allergies and medical conditions.

Where do fleas live?

Fleas live on animals as well as in the environment . The flea population consists of adult fleas, immature larval stages, dormant pupae and then eggs, as you move down the list the numbers increase significantly which is why we refer to them as a pyramid.

Can fleas jump?

Fleas can jump but they can’t fly , they need blood feeds to survive and a large proportion of the flea population are in the environment as oppose to on your pet.

Can cats carry fleas?

Cats can also carry the fleas and they do not even have to be your own cats, for example if a cat comes through your home or garden then the fleas can jump off or deposit eggs as they go. This is why we often advise treating the home environment and in-contact animals also.

What happens if your dog's skin is broken open?

Once the skin is broken open a number of infections can happen, including bacterial infections and yeast infections. Impetigo happens to puppies under the age of 1 and you will notice pus-filled blisters popping up on the hairless areas.

Why does my dog itch?

The allergy may cause a skin condition to develop , such as allergic dermatitis. Allergies could be caused by food or the environment, and it can be difficult to narrow down what the specific allergy is that’s causing your dog to be itching all of the time.

Why does my dog scratch and itchy?

Here are some of the top reasons why your dog is itching and scratching even though he doesn’t have fleas. 1. Your Dog Has Allergies. One of the most common reasons for a dog to be itching even when fleas aren’t the issue has to do with allergies .

Why does my dog have a food allergy?

Most dogs don’t have a food allergy, but instead have a food sensitivity, which could be caused by an ingredient in the food. Itching, poor coat, poor skin, and ear or foot infections are common in dogs with a food sensitivity. 2. Your Dog Has Skin Disease.

How long does it take for impetigo to clear?

Within three weeks the impetigo will begin to clear and it shouldn’t be an issue after that as long as living conditions are sanitary. 3. You Are Washing Your Dog Too Often. Just like with humans, you can actually bathe your dog too often and this is going to be harmful.

Why does my dog scratch after flea treatment?

There are other common causes of itchiness in pets, including allergies, skin infections, other parasites, and even anxiety. If your pet is still scratching after flea treatment, it’s time to call the vets for help.

How long does it take for fleas to hatch?

Pet parents often have unrealistic expectations, especially if they buy a product from the vets – but the truth is, the pupae can wait 12 weeks to hatch, which means you need to treat for 12 weeks, without a gap, to beat them.

Is adulticide cheaper than flea treatment?

Whilst an adulticide treatment appears to be cheaper than one that treats more life stages, remember that you’ll need to treat for twice as long to get rid of a flea infestation! PetsRadar has buying guides to all type of effective flea treatment including the best flea collar for dogs and the best flea collar for cats, along with the best flea medication for dogs.

Do fleas have adulticides?

The life cycle is key to treating fleas effectively. Firstly, it’s important to understand that most flea products contain an adulticide – a chemical to kill the adults. Some – but not all – will also contain ingredients that will kill the eggs/larvae, or an insect growth regulator, which prevents the fleas from moving through the life cycle.

Can you give a flea treatment twice?

Even if you think you’ve washed the product off, or your pet has vomited their flea treatment, you shouldn’t rush to give them a new product or apply their flea treatment twice. Instead, call your veterinarian for their advice on what to do next. It’s likely there will need to be a waiting period (of a few days or weeks) before you can apply the next flea treatment, depending on what you’ve already used. However, in some cases, a new and more effective flea treatment can be safely prescribed.

Can fleas make your pet miserable?

Fleas are frustrating to get rid of, and can make you and your pet miserable, but what’s the best way to get rid of them?

Can fleas feed on rabbits?

There’s no point in treating your dogs if the adult fleas can feed on your rabbit, or on the neighbour’s cat that sleeps on your sofa sometimes! The minute you forget a day of your dog’s treatment, or use a sub-standard product, they’ll catch fleas again. Make sure you treat all the animals in the house so the adult fleas have nowhere safe to go! If you have a visiting cat, please check with their owner before applying flea treatment, to avoid double-dosing.

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