Immunizations
When to Call a Doctor
Call 911 or other emergency services if you or your child has a severe reaction to any immunization, as indicated by:
- A major allergic reaction, such as a severe asthma episode, severe problems breathing or swallowing, or hives.
- Significant changes in alertness within 7 days of getting the vaccine.
- A seizure.
- Collapsing.
Call your doctor immediately if:
- Your child has signs of a severe reaction within 2 to 3 days after an immunization. For example, call your doctor if:
- Your child cries for more than 3 hours and cannot be comforted.
- Your baby younger than age 3 months has a fever of 37.5°C (99°F) or higher, measured in the armpit (axillary).
- Your child has a fever of 39.5°C (103°F) or higher, measured in the armpit (axillary). For more information about a fever, see the topics:
- You or your child has any unusual reaction after receiving an immunization.
Call your doctor if:
- Redness and swelling at the site of the shot persists for more than 48 hours after receiving an injection.
- A fever lasts for more than 48 hours after receiving an injection.
Talk with your doctor about whether you need special immunizations because of:
- Close contact with people who have an infectious disease.
- Planned international travel, especially to developing countries. You may be referred to a travel medicine specialist at a travel medicine clinic, especially if you need specialized immunizations.
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| Author: | Alison Allen Debby Golonka, MPH | Last Updated: January 29, 2008 |
| Medical Review: | Michael J. Sexton, MD - Pediatrics Andrew Swan, MD, CCFP, FCFP - Family Medicine | |
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