Cat's vaccine reaction returned. Is it the vaccine or something else?

Hi there and thanks for posting on Petco Pet Education Center, formerly Petcoach! My recommendation would be to have Mona seen again by her veterinarian. While reactions to injections such as cortisone are not common, they can happen. Reactions may include vomiting, inappetence, lethargy, and sometimes diarrhea. It is possible she may have had a reaction to the injection, however, there are also other medical causes for Mona's symptoms so it is a good idea to have Mona seen so other causes can be ruled out and Mona can get the necessary treatment. I hope this helps and thank you again for posting!

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Vaccine reactions are rare and we usually see facial swelling and hives more often in dogs but I do think that Peanut may be having a vaccine reaction. You should take her to a emergency Vet. The mainstay of treatment for a vaccine reaction is outpatient. They give injections of steroids and possibly an antihistamine. Peanut will likely be sent home with steroids as well. I do not recommend giving her any human medications. Cats are very sensitive to medications. I hope this helps and good luck!

Thanks for using Petco Pet Education Center, formerly Petcoach! I would recommend taking Shorty to the vet again for a follow up exam. Whatever was causing the allergic reaction is still in his body. He may need longer treatment with steroids. You can continue to give the Benadryl every 8 hours but if there is no change, I would see a vet. Good luck and kisses to Shorty!

Thanks for using Petco Pet Education Center, formerly Petcoach! This is possibly due to allergies. It really comes down to figuring out what is causing her allergies so that they can be treated or the specific allergen avoided. A secondary infection is likely and also needs to be addressed. The main reason the signs returned is that the allergic component needs to still be dealt with on top of giving the injection. There are many things that can cause allergies though in most cases they can be broken down into 3 big categories: flea, food and environmental allergies. Allergies are usually worked up in a stepwise fashion starting with flea allergies as this is the easiest and cheapest to take care of. If not on a flea preventative, then it would be a good idea to get started on one. If already on one then it would be a good idea to change to something else (there are many new products out in the market). If not improved in 1-3 months then it is time to move on and check for food allergies by switching to a novel diet (new protein and new carbohydrate). If that does not seem to be the issue then you are left out having to check for environmental allergies which require blood and/or skin tests. Allergies can be very frustrating to deal with at first but so rewarding at the end when we are able to treat them effectively!

Hello, thank you for using Petco Pet Education Center, formerly Petcoach. Yes, I would definitely contact your veterinarian about a possible vaccine reaction. It may not be anything serious, but with a holiday weekend coming up, I would not wait & hope for the best. Hope Shrimp is feeling better soon.

Hi there and thank you for using Pet Coach to address your concern. My suggestion would be to have the veterinarian who administer the vaccination recheck Suzie. Sometimes vaccination reactions can cause the symptoms you are seeing so it would be advisable to have her looked at so the reaction does not progress. Your vet can then administer medications to help treat a possible reaction such as benadryl and a steroid injection. I hope this helps and I hope Suzie gets better! Please let me know if you have any other questions or concerns. I am also available for consult if needed.

Hello. This may have been a vaccine reaction & the Cerenia should have helped. However, we do sometimes need addition anti-nausea medication to get over some of these acute episodes. Often, I will also use Ondansetron if the vomiting persists even with additional use of the Cerenia. Of course, there could be some secondary issue going on & the timing of the vaccinations may have been coincidental. If Jojo continues to vomit, she may need additional Cerenia, & possible some fluids until her body heals. Make sure you stay in touch with your vet in case she does need additional treatment. Thanks for using Petco Pet Education Center, formerly Petcoach.