Severe allergic reactions (anaphylaxis) are potentially life threatening affecting more than one body system such as the airways, heart, circulation, gut and skin. 

Anaphylaxis is a serious and often sudden allergic reaction. It can occur when someone with allergies is exposed to something they are allergic to (known as an allergen)

Symptoms can start within seconds or minutes of exposure to the food or substance you are allergic to and usually will progress rapidly

Allergies affect approximately one in three of the UK population and each year numbers grow by 5% with as many as half of those affected being children.

Anaphylaxis is the most severe form of allergic reaction. Common causes are insect stings, foods and some medication. It is life threatening and requires immediate first aid (an auto-injector) and emergency medical assistance.