Reactions to Vaccination
Vaccine reactions, of all types, are infrequent. In general, most vaccine reactions and side effects (such as local pain and swelling) are self-limiting. Allergic reactions are not common, but if left untreated can be fatal. These can occur minutes or hours after vaccination. If you see such a reaction, contact your veterinarian as soon as possible. It is also a good idea to document the reaction, severity and what vaccines were given; this information should always be in a pet’s medical record so that future vaccines may be preceded with a medication to decrease the severity of the reaction.