Anaphylaxis
What is Anaphylaxis?
Anaphylaxis is a severe and serious allergic reaction that could be life-threatening. Vaccinations can cause anaphylaxis. Symptoms of allergic or anaphylactic reactions can happen within seconds or minutes from exposure to the triggering event, such as the administration of a vaccination.
Common symptoms related to Anaphylaxis
Signs and symptoms of an anaphylactic reaction include:
- Fast heart beat
- Weak pulse
- Skin rash
- Nausea
- Vomiting
- Difficulty breathing
- Hives
- Swelling
- Feeling of tightness or lump in the throat
- Difficulty swallowing
- Flushed or pale skin
- Runny nose and sneezing
- Tongue and lip swelling
- Tingling in hands, feet, mouth, or scalp
- Dizziness
- Confusion
- Sudden weakness