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Updated on September 23rd, 2025
Pet's info: Dog | Mixed Breed | Female | unspayed | 1 month and 13 days old | 6.8 lbs
so i took my pup yester to the vet, we gave her,her first vaccine, and her ears got cleaned, now she is all sleepy the next day,and keeps shaking her head
2 Answers
Answered By Dr. Leigh, DVM
Veterinarian
Published on February 14th, 2017
Answered By Dr. Strydom, DVM
Veterinarian
Published on June 30th, 2019
Vomiting and lethargy after vaccinations is a vaccine reaction. The vomiting is the most concerning. If he only vomited once I wouldn't be overly concerned. If it was more than once he should go back to the vet for treatment.
If vomiting is not persisting then the lethargy should resolve in a day or two with no treatment. Please refer to this article:
( https://www.petcoach.co/article/adverse-reactions-to-vaccination/ )
The ear infection is likely unrelated to the vomiting and lethargy.
As always, if you are worried you should have him examined now. It is always better to be safe than sorry in these cases.
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