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My puppy has a rash after using flea spray. What should I do now?

Updated On September 23rd, 2025

Pet's info: Dog | Chihuahua | Female | unspayed | 4 months old | 6 lbs

I have a dog and she is at least 4-5 months old. I have given baths to when she gets fleas and she's used to that but recently I used Adams flea spray and she's been getting rash spots. What should I do? Is it because she's not used to it?

1 Answer

Most Helpful Answer

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Answered By Catherine Stecyk

Veterinarian

Published on March 23rd, 2019

Hello and thank you for reaching out to Petco Pet Education Center, formerly Petcoach. It sounds like Fifi has had a bad reaction to the Adam's flea spray, so this should NOT be used again. The only topical flea and tick products that should be used on dogs (and cats) are those purchased from a veterinarian. Flea and tick products that are purchased from a pet or food store or online are not safe or effective for dogs, and can cause these painful skin reactions, or can even cause dogs to become systemically sick. I recommend contacting your local veterinarian about what flea and tick products they offer. Appropriate topical options include K9 advantage and Frontline. There are also oral options such as Bravecto and Nexgard, as well as a collar than can be worn (Seresto collar) for up to 8 months of flea and tick prevention! I hope this is helpful.

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