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Dog has bumps after flea treatment. How to make them go away?

Updated On September 23rd, 2025

Pet's info: Dog | American Staffordshire Terrier | Female | unspayed | 6 months and 22 days old | 38 lbs

My dog has fleas. I also used a flea killer on her called martins l.g. regulator and she suddenly has bumps on her back. A friend told me if could be from the flea killed and be permanent. I want to know how to make them go away. You can't really see the bumps in the picture, but in person you can just see little spots where the fur is raised.

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1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on June 26th, 2017

Martins l.g. regulator is only to be used on furniture and animal bedding, not on the animal itself according to it's package instructions and the bumps may be a reaction from that. Your friend is wrong that these bumps are permanent, and I would immediately bathe Vega to get this product off of her immediately. If these bumps do not go away or get worse, you will need to take her into the vet in the morning for treatment. Please do not put this product on her again, it's not safe to use on dogs. As for flea treatment, you need to use a product specifically labeled for use in dogs, and I will give you the flea treatment method I always recommend that works extremely well. 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. 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.

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