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Why does my dog have hives and itchy hot spots from scratching?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 1 year and 2 months old | 70 lbs

Dog has hives and can't figure out what's going on. She inches herself so much that she creates hotspots

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1 Answer

Most Helpful Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on February 7th, 2019

Poor Nori! Hives can because due to an ongoing allergic reaction, a cancerous tumor called a mast cell tumor that is releasing histamine into the bloodstream, or rarely mites. Of these an allergic reaction is by far the most common. If this has been continuing beyond 48 hours I recommend to have Nori see her veterinarian. Often these pups need a steroid as well as antihistamine to get the immune system to calm down. She will stop itching likely once you get the hives to go away. In the meantime try to protect your skin by having her wear a dog T-shirt. Keep any wounds clean and you can wash them with an antibacterial soap at home. Make sure to rinse them well. While you are there, be sure to have any masses on her skin checked out to be safe. I hope this helps and that she starts feeling better! Please feel free to post any additional questions.

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