Popular questions...


What are the symptoms of anaphylaxis?

The symptoms of anaphylaxis can occur almost immediately after exposure to an allergen. Anaphylaxis can occur within minutes: 20 minutes is the average amount of time for symptoms to appear. Symptoms can include: • Facial swelling, including swelling of the lips and eyelids; • Skin reactions (e.g. reddening of skin across the body or hives); • Swollen tongue; • Swollen throat; • Constriction of the airways; • Inability to talk, or a hoarse voice; • Wheezing or coughing; • Nausea, vomiting or diarrhea; • A drop in blood pressure; • Dizziness, fainting or unconsciousness, and; • Paleness and floppiness in young children.

FAQ Frequently asked questions

Related topics

About this article

Author: Dr Joanne Van der Velden PhD, BSc (Hons)
First answered: 18 Sep 2014
Last reviewed: 19 May 2018
Rating: 4.2 out of 5
Votes: 931 (Click smiley face below to rate)
Category: Asthma


Content goes in here.