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Why are my dog's flea bumps and hair loss not responding to treatment?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | 4 months and 21 days old | 45 lbs

Alright so it's my dogs first summer (she's a black lab if it matters) So fleas have come out. She has developed these sort of red-ish bumps all over in patches along with hair loss. We have tried flea ointment,shampoos weekly,and flea collars. The bumps happened after the treatments we have.

1 Answer

Most Helpful Answer

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Answered By Dr. Leigh, DVM

Veterinarian

Published on June 5th, 2017

She could have a bacterial skin infection associated with the flea allergy dermatitis. Since it is not responding to the treatments that you have tried, she should be examined by a vet for treatment. She may need a corticosteroid, antibiotic, and an anti-histamine to treat. Your vet can also recommend an effective flea control regime to help prevent fleas. The best thing is to use a monthly flea prevention, like NexGard, Frontline, Advantage to help control the fleas.

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