Dog ate chocolate?

ask a vet

Does pet store flea medicine work?

Species: Dog
Breed: Mutt
Age: 2-5 years
My dog just got fleas. I've given her multiple flea baths, flea collar, and flea medicine goes behind her neck. She has been itching like crazy. I've only found a few fleas on her. Today I noticed her acting odd. She doesn't want to walk. She keeps wanting to sit on her bottom. She hasn't had a BM today. It's as If she's scares to go. Her butt feels like there's a knot inside. Jer behavior is different. What should I do?

Related Article: Your Pet Has Fleas!


Online vet, Dr. Marie

Dr. Marie replied:

Fleas are so frustrating!

I get really frustrated at pet store products for fleas. The products you buy in the pet store do not work well. Flea baths and collars are almost useless. The topical medications like Zodiac and Biospot are different than the prescription products work much better.

Products that do work well to kill fleas include:
  • Frontline

  • Advantage

  • Revolution


  • What you are describing with her constantly wanting to sit on her bottom may be related to a flea allergy. Often dogs with an allergy to fleas will have severely red itchy spots either on the top of their tails or underneath the tail. These usually need to be treated with medication prescribed by the vet.

    Another reason for dogs to sit suddenly on their bum is if her anal glands are full. These glands sit on either side of the anus and when they are full they are uncomfortable. While you can possibly empty them yourselves it is best to have a vet do it, especially for the first time.

    However, I would be worried that this is all related to fleas.

    It sounds like a vet visit is the best idea.

    Dr. Marie.

    ---This question was asked in our Ask A Vet For Free section.---


    Do you have a pet website? Interested in learning more about SEO for Wix?


    Check out our dog age calculator and cat age calculator.

    Want to receive pet coupons, vet advice and info on new pet products in your inbox?

    * indicates required

    We'll only send you great stuff, never spam. Unsubscribe any time.

    Disclaimer: Although Dr. Marie is a qualified veterinarian, the information found on this site is not meant to replace the advice of your own veterinarian. AskAVetQuestion.com and Dr. Marie do not accept any responsibility for any loss, damage, injury, death, or disease which may arise from reliance on information contained on this site. Do not use information found on this site for diagnosing or treating your pet. Anything you read here is for information only.

Search for similar questions:

ask a vet

Popular questions...

Inbreeding dogs. is it true that if a female dog and her son have a relationship will the puppies... (41560 views)

Is Frontline working for fleas? I live in Iowa and rescued a black Pug from a family in July. The previous owner... (18312 views)

Cat's foot is swollen. His left back foot is swollen and his paw. Ever since it was swollen he has been... (7496 views)

Rimady and kidney disease. I took my dog to the vet because she yelped when I rubbed her belly above her... (7916 views)

Dog is limping. Denaro has had a limp in his left front leg for about a month, it goes from a... (14934 views)

Regular anal gland expression. Hello, I am trying to get some answers about my puppy's anal gland problem. I... (7552 views)

Did I cause my cat's brain injuries? hi ya i was playing with my cat and it scrap me bad so i slapped him on the head he... (19123 views)

Open sore with black center. My dog has an open soar on her back a little bit smaller then a pencil eraser. In... (19931 views)

Trim ferret's teeth? can you trim your ferrets teeth so that when they bite it wont hurt as much and if... (8274 views)

Worms in vomit. My dog threw up a yellow substance and it had worm like creatures I it what should I... (10072 views)

See all questions...

Dr. MarieDr. Marie is a veterinarian who practices in a busy animal hospital in Ottawa, Ontario. She created Ask A Vet Question as a resource for good, accurate veterinary advice online. Dr. Marie treats dogs, cats, hamsters, guinea pigs, and rats. She has been a vet since 1999.

Is an online vet visit just as good as a trip to your veterinarian? No! But, many times, asking an online veterinarian a question can help save you money. While Dr. Marie can't officially diagnose your pet or prescribe medications, she can often advise you on whether a vet visit is necessary. You can also ask Dr. Marie for a second opinion on your pet's condition.