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My kitten has a red oozing spot on shoulder after shots. Is it normal?

Updated On September 23rd, 2025

Pet's info: Cat | Siamese | Female | spayed | 3 months and 23 days old | 2 lbs

Kitten got shots 2 days ago this morning she has a round red irritation on her right front upper shoulder area about the size of a quarter. It’s not raised it might be oozing a little but it’s hard to tell

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2 Answers

Most Helpful Answer

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Answered By Megan, DVM, CVA

Veterinarian

Published on December 24th, 2017

Poor Beans (cutest name BTW)! If this is where she received her vaccine, she could be having a local reaction to the vaccine. It could also be an infection under the skin or a bacterial or fungal infection on the skin. You could try giving her beandryl twice a day to see if it improves. See link below. If it is getting worse (swelling, more hair loss, any discharge, not eating, etc) or just not improving, I would definitely have your vet take a look at it. She may need some antibiotics or anti-fungals to help her feel better. Plus, if it is a local reaction to the vaccine, your vet will want to make a note in her chart for her next set of shots. I hope this helps! https://www.petcoach.co/canigive/cat /benadryl

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    Answered By Destini R. Holloway, DVM

    Veterinarian

    Published on June 4th, 2020

    Poor girl. It looks like a puncture wound for sure. I don't suspect this is related to her vaccinations based on the photo. I would certainly want you to get her seen by an ER vet if the swelling continues, especially if it starts to form around her throat and interfere with her breathing. You can also try giving her some Benadryl for now to see if the swelling subsides. Here is a link to our educational client page on proper usage of Benadryl and dosage recommendations. --> https://www.petcoach.co/pet-medication/benadryl/ It typically takes several hours for Benadryl to take effect, so if things worsen in that time frame, it is best to get Moon Pie to an ER vet unfortunately. I do hope that things either remain stable and don't get worse until the morning when your regular vet is open to take another look at Moon Pie. You can try a cold compress on the area for 5 minutes tonight also if she will be cooperative. Best of luck to you both and take care. : )

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