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Dog peeing in house after allergy shot. Is it a steroid side effect?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 5 years and 11 months old | 50 lbs

My dog has some awful allergies! She itches&bites so bad that at one point she looked as if she had mange! She bleeds, loses hair, licks her under belly until its red, sticky&then turns somewhat crusty. So we took her to the vet&he said it was some type of allergy coming into the area. Periodically, he gives her an allergy shot(not sure what it's called)&it seems to help a bit. After she gets the shot, she has no control over her bladder. She has never peed in the house. Why is this?

2 Answers

Most Helpful Answer

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Answered By Robin Diers, DVM

Veterinarian

Published on July 26th, 2017

Hello there. While there are several types of shots that can be called allergy injections, it sounds like Uno might be receiving a steroid injection to help with her itching. Some common side effects from steroids are excessive hunger and excessive thirst. The increased water intake can increase urination and come sometimes lead to accidents in the house. While steroids can be a very effective treatment for allergies, there are other treatment options that you can discuss with your veterinarian.

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    Answered By Jennifer Summerfield, DVM CPDT-KA

    Veterinarian, Certified Dog Trainer

    Published on August 16th, 2019

    Hi there. Without knowing what specific medications she's taking, it's hard to say. But, if she is on a steroid such as prednisone, this can certainly cause increased drinking and urination, and will cause some dogs to have accidents in the house. I would suggest calling your veterinarian tomorrow to discuss your concerns. He/she may recommend decreasing her steroid dose (if she's currently taking one), or switching to a different medication to help with these side effects.

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