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Dog itching constantly after dead animal. Is it fleas or mange?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | neutered | 6 years and 3 months old | 40 lbs

About a month ago my dog rolled around for a split second near a dead cat. Ever since he has been itching non stop. I’m scared he has mange and find any remedies to work and can’t afford to take him to the vet. I have treated with k9 advantx, aloe Vera, honey, and he currently is wearing a cone to avoid bothering.

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1 Answer

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Answered By Stephanie Echols, DVM

Veterinarian

Published on March 11th, 2020

Thanks for using Petco Pet Education Center, formerly Petcoach! I would be more concerned with catching fleas from the dead cat. Over the counter products, like Advantix, are not as strong as they used to be and may not be killing the fleas. Also, you need to treat all pets in your home with flea prevention every 30 days for at least 3 months in a row to kill the flea life cycle. In the pictures it looks like Clyde is having an allergic reaction to fleas. This doesn't happen in every pet, but when a pet is allergic to fleas it can last in their system for about a month. If that is the case, Clyde likely needs an oral medication to help with the allergic reaction. Unfortunately, you can only get this medication from a veterinarian. I would also recommend a flea product from a veterinarian so you are sure to kill the fleas and their life cycle to prevent further allergic reactions. You may be able to get a flea prevention from your vet without an exam, so I would call and ask. I would also ask what options they have for billing so you can get him medications for the reaction. Good luck and kisses to Clyde!

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