Skip to Content

Should I take my pet to the vet if it has fleas?

Fleas are a common problem for pet owners. If you notice your furry friend is scratching, biting, or seems uncomfortable, there’s a good chance fleas are to blame. But is a trip to the vet necessary every time fleas strike? Here’s what you need to know about when to seek veterinary care for fleas versus when you can manage the issue at home.

Signs Your Pet Has Fleas

Before deciding if and when to see the vet, you’ll want to confirm fleas are actually the culprit behind your pet’s discomfort. Fleas themselves are tiny and can be hard to spot in fur, but there are some telltale signs that these pests have taken up residence on your pet:

  • Excessive scratching or biting at the skin
  • Restlessness and not wanting to sit still
  • Scabs or red, irritated skin from scratching
  • Black specks of flea dirt (flea feces) on the skin or in the fur
  • Hair loss, especially around the tail, legs, or belly
  • Fleas visible jumping off your pet

You may also notice fleas around your home, such as on furniture or bedding where your pet sleeps. The best way to check for fleas is by combing your pet’s coat with a fine-toothed flea comb. Look for any signs of fleas or flea dirt as you comb through the fur.

When to See the Vet

In most cases, fleas don’t warrant an immediate trip to the vet. Over-the-counter flea treatments are usually effective for minor infestations. But there are some situations where you should seek veterinary care right away if fleas are an issue:

  • Allergic reaction – Some pets have severe allergic reactions to flea bites. Signs can include red, oozing skin lesions, hair loss, and extreme itching/biting. Pets with flea allergies may need prescription medications for relief.
  • Young/elderly pets – Very young and very old pets tend to be more vulnerable to fleas. The infestation and blood loss can make them anemic or cause other health issues.
  • Heavy infestation – If you spot dozens of fleas crawling on your pet at any given time, or the infestation has persisted for months, veterinary intervention may be needed.
  • Illness – Any signs of lethargy, weakness, reduced appetite, fever or other concerning symptoms along with fleas require prompt vet attention.

It’s better to be safe than sorry where flea infestations overlap with any concerning symptoms in your pet. Call your vet right away in these cases.

Treating Fleas at Home

In many cases, flea infestations can be managed at home without calling the vet. But treating fleas requires diligence on your part. You’ll need to thoroughly treat your pet and your home for the best chance of success. Here are some tips:

Treat Your Pet

The most critical part of flea removal is treating your pet directly. There are many over-the-counter topical and oral flea control products available. Some options include:

  • Topical spot-ons, like Frontline or Advantage II
  • Flea collars, like Seresto or Hartz Ultraguard
  • Flea shampoos and sprays
  • Oral flea pills, like Capstar or Program
  • Flea combs to manually remove fleas

Use products as directed, and treat all pets in your household. It can take up to 3 months for flea medications to fully clear an infestation because they can only kill adult fleas after they bite your pet.

Treat Your Home

To keep re-infestation at bay, you also need to treat your home environment. Target areas where fleas live and breed, like soft surfaces where pets sleep and hang out:

  • Vacuum upholstered furniture, rugs, pet beds, etc. daily. Dispose of the vacuum bag after each use.
  • Wash pet bedding frequently in hot, soapy water.
  • Use flea control spray on carpets and allow it to set in before vacuuming.
  • Use flea powder or borax in crevices around your home.
  • Hire an exterminator for whole-home fogging if infestation is severe.

Consistency is key! It can take up to 6 weeks of diligent treatment to fully clear your home of flea eggs and larvae.

Monitor Your Pet

Keep an eye on your pet over the next several weeks as you implement flea removal measures at home. Look for any signs of continued scratching or discomfort. Comb your pet periodically to look for lingering fleas. You want to ensure the treatments are working effectively. If fleas persist after 2-3 applications of topical/oral medications, contact your vet for additional recommendations.

Preventing Fleas

An ounce of prevention is worth a pound of cure when it comes to fleas. Once an infestation takes hold, it can be difficult to manage. You can take some proactive steps to help keep fleas off your pet in the first place:

  • Use flea prevention medications year-round. Fleas thrive in warm, humid weather.
  • Treat all pets in the household and any new pets prior to introduction.
  • Groom your pet regularly and check for any signs of fleas.
  • Vacuum and wash pet bedding frequently.
  • Keep your yard free of tall grass, weeds, and standing water.
  • Consider hiring a professional pest control company for seasonal outdoor spraying.

Ask your vet for a recommendation on the best flea prevention plan for your pet. With some diligence, you can minimize flea problems and keep your furry friend comfortable.

When to Follow Up with the Vet

If a course of at-home flea treatment does not seem to resolve the issue within 6-8 weeks, it’s time for a follow up vet visit. Your vet can recommend alternative medications or treatments if the current approach is not working. Be prepared to provide details on:

  • What flea prevention methods you have tried
  • How long you maintained the treatment routine
  • If you treated both the pet and home environment
  • Any signs of continued scratching or presence of fleas after treatment

Make note of anything that seems relevant so you can have an informed discussion with your vet. In some cases, there may be an underlying cause making flea treatment difficult, like an immune disorder or skin infection. Your vet will work with you to get the infestation under control and keep your pet comfortable.

Flea Medication Side Effects

Most flea medications are very safe when used as directed, but in rare cases, side effects can occur. Here are some things to watch for:

Topical Spot-On Treatments

  • Skin irritation at application site
  • Hair loss around application site
  • Greasy/unkempt coat (residue from product)
  • Skin reddening or sores
  • Lethargy or reduced appetite
  • Hiding or seeming depressed

Oral Medications

  • Vomiting or diarrhea
  • Loss of appetite
  • Increased thirst and urination
  • Jaundice (yellowing of gums/skin)
  • Seizures
  • Wobbly gait or lack of coordination

If you notice any unusual behavior or reactions in your pet after applying flea medication, call your vet right away. Stop using the product until you can have your pet examined. Adverse reactions are uncommon but can be serious in some cases.

Non-Chemical Flea Control Alternatives

If you have concerns about using conventional flea control chemicals, there are some non-toxic alternatives to consider:

Flea & Tick Collars

Some companies make natural ingredient flea collars using plant oils instead of insecticides. Studies suggest they can be moderately effective for repelling and killing fleas and ticks.

Natural Sprays

Sprays containing citrus peel extract, cinnamon, eugenol or other plant-based ingredients can help repel and kill fleas without harsh chemicals.

Diatomaceous Earth

Food-grade diatomaceous earth powder can be applied to your home and pets. The sharp edges cut into fleas’ exoskeletons, causing dehydration.

Salt Water

Washing your pet with a salt water solution is said to damage fleas’ exoskeletons through osmosis. Some pet owners claim this home remedy helps flea problems.


Bathing pets weekly and combing thoroughly with a flea comb can provide some natural flea control by drowning and manually removing fleas in your pet’s coat.

Note that fully non-toxic options may be less potent than conventional flea medications. You may need to use multiple methods for best effectiveness. Talk to your vet if interested in exploring more natural flea prevention.

Home Remedies to Avoid

When searching for home flea remedies, you may come across some options that are potentially unsafe. Here are some to avoid:

  • Lemon/citrus juices – Can cause burns or skin irritation on pets.
  • Essential oils – Oils like tea tree are very concentrated and can be toxic to pets, especially cats.
  • Garlic – Toxic to pets in concentrated forms.
  • Tobacco – Extremely toxic. Never apply to pets.
  • Vinegar – Acidic vinegar can irritate skin.
  • Bleach/alcohol – Far too harsh and drying for pets’ skin.
  • Motor oil – Unsafe and ineffective option with no flea-repelling properties.

Stick to gentler, pet-safe ingredients reviewed by professionals to avoid harming your pet. When in doubt, check with your vet on safety.

How Much Does Flea Treatment Cost?

The cost to treat a flea infestation can vary quite a bit depending on the products you use and the extent of the infestation. Here are some general cost ranges:

Topical Treatments

  • Over-the-counter topical: $10-$30 per dose
  • Prescription topical: $15-$150+ per dose

Oral Medications

  • Oral flea pills: $10-$50 per dose

Other Products

  • Flea collars: $10-$25 per collar
  • Flea shampoos: $5-$15 per bottle
  • Flea sprays: $5-$20 per can
  • Flea combs: $2-$10 per comb

Home Treatment Costs

  • Flea foggers: $10-$25 per use
  • Professional exterminator: $100-$500+ for whole home

With severe infestations, costs add up quickly from repeated treatments over weeks or months. Prevention is much more affordable than trying to rid your home of an existing major flea problem.

Should I Treat My Home Myself or Hire an Exterminator?

You can definitely treat fleas in your home yourself in many cases, but there are benefits to hiring a professional exterminator at times:

Consider Professional Help If:

  • Infestation is severe or persists despite your efforts
  • Pets have flea allergies or medical issues from flea bites
  • You do not have time for intensive cleaning and treatment measures
  • You have an urgent need to get rid of fleas quickly

Benefits of Professional Pest Control:

  • Whole-house treatment solutions and specialized equipment
  • Precision targeting of fleas and larvae in fabrics, carpets, cracks/crevices
  • Knowledge of most effective active ingredients for your environment
  • Follow-up treatments included if fleas return
  • Potentially fewer applications needed compared to DIY methods

Professional extermination can offer convenience and often better results for severe flea issues. But for minor infestations, over-the-counter methods are usually sufficient as long as you follow through diligently in treating your pet and home.


Fleas are definitely a nuisance, but in most cases they can be managed at home without an immediate trip to the vet. Focus on thoroughly treating your pet with flea prevention medications, as well as hot-spot areas in your home. Vacuum and wash all fabrics regularly to kill flea eggs and interrupt the life cycle. Stick with a diligent treatment routine for at least 6-8 weeks.

Contact your vet promptly if your pet has signs of an allergic reaction or illness along with fleas. You should also follow up if at-home treatment fails to resolve the problem. Be patient but persistent, as fleas can be stubborn pests. With the right treatment plan you can get rid of fleas and keep them from coming back.