It's fairly common for your pet to experience some or all of the following mild side effects--usually starting within hours of vaccination and typically lasting no longer than a few days. If these side effects last for more than a few days, contact us immediately.
- Discomfort and local swelling at the vaccination site
- Mild fever
- Diminished appetite and activity
- Sneezing or other respiratory signs (following an intranasal vaccine)
A small, firm swelling under the skin may develop at the site of a recent vaccination and should disappear in a couple of weeks. If it persists for more than three months or grows in size, please contact us. More serious but rare side effects, such as severe allergic reactions, may occur within minutes to hours after vaccination. Signs include vomiting, diarrhea, itchy skin, difficulty breathing and collapse. These allergic reactions can be life-threatening and are medical emergencies. Contact us immediately, as your pet may require medical attention.