Immune system

By ryanw0721

  • immunoglobulin E is an antibody and sometimes it mistakenly targets a certain protein found in food as a threat

  • IgE can cause several chemicals to be released, the most important being histamine.

  • histamine causes small blood vessels to expand

  • the immune system goes into overdrive and releases large amounts of histamine

  • affects the nerves in the skin, causing itching

  • as a result a number of chemicals are released