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How to treat fleas on a small 3 lb puppy safely and effectively?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Female | unspayed | 3 months and 5 days old | 3 lbs

What can I use to help with flea on a 3 lb puppy

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1 Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on September 23rd, 2018

Starla is so cute! First, I would give her Capstar. It's a one time pill that starts killing fleas within 30 minutes. Then follow up with a spot on treatment, such as Advantage or Revolution. Both can be given to puppies her age and weight. This is a treatment that has to be used once a month. You will also have to disinfect the environment. Wash her bedding in hot soapy water, and vacuum the furniture and carpet surfaces. You can use a spray to kill fleas in the house, such as Indorex, or a flea bomb would work well to kill the fleas in the home. Best of luck, I hope this helps!

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