What are the symptoms of anaphylaxis?
Anaphylaxis symptoms may include one or more of the following:
- Hives, rash, or itchy skin
- Pale skin, or skin that is red and warm (flushed)
- Swelling in the mouth or throat, or of another body part
- Wheezing or trouble breathing
- A tight feeling in the chest
- A feeling of anxiety
- Nausea, vomiting, or diarrhea
These symptoms usually show up right after you are exposed to an allergen (see Causes & Risk Factors to learn more about allergens). The symptoms can be mild or severe. Be sure to tell your doctor if you think you’ve ever had a severe allergic reaction or symptoms of anaphylaxis, even if your symptoms were mild.
Written by familydoctor.org editorial staff