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How do I safely treat a bad flea problem on my 7-month-old puppy?

Updated On September 23rd, 2025

Pet's info: Dog | German Shepherd | Female | spayed

7 month old puppy has fleas bad! What can i give?

1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on October 14th, 2017

Pretty much all of the OTC flea medications are safe for 7 month-old puppies. There are several options, such a monthly topicals, flea collars, or a Seresto collar. Flea shampoos don't work well at all. Prescription oral flea preventative seem to work the best, in my opinion, so I would recommend that Grace be checked out by a vet so she can get started on one of these. Please know that it can take several months of consistent treatment to get rid of a flea infestation. Fleas don't live on the dog, they only jump on at bedtime. So, if you see a 2 or 3 fleas on Grace at one time, then there could be 20-30 fleas off of her, laying eggs to make new fleas! Here is some more information on fleas: http://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=3682

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