Dog Diarrhea After Vaccines. Other symptoms of an allergic reaction to a vaccine include facial swelling, hives, nausea, vomiting, diarrhea and collapse. The signs listed above are not subtle and you will notice a difference in your dog if they are occurring.

Will vaccination make my dog sick? Many people automatically give the remedy thuja after a vaccination, but it’s not the only remedy indicated for vaccine reactions. In the case of killed vaccines containing an adjuvant, lump formation may occur at the vaccination site.