
I've seen it a few times in my Papillons as they are such tiny dogs They do seem to get very sore afterwards. If the pup is hurting phone the vet, they may want to give a small dose of Metacam. If not, just leave him to rest and he should be back to normal in 24 hours. It's much the same with human babies, they can get a temperature and feel unwell after being vaccinated.