Immune System Timeline

  • First intake

    The first time a person eats a food allergen,a IgE antibody is formed and attaches itself to cells found in the tissues in cells all over the body. So, now the body is primed for that allergen if it enters the body again.
  • Second intake

    When the food allergen enters the body again, the allergen binds to IgE antibodies and sends out signals for the body to release large amounts of histamine. This causes irritation and swelling in certain areas of the body - an allergic reaction.
  • Symptoms

    Common symptoms of a mild allergic reaction include:
    -Hives
    -Itching
    -Nasal congestion
    -Rashes
    -Watery, red eyes Symptoms of a moderate or severe reaction include:
    -Abdominal pain
    -Anxiety
    -Chest discomfort or tightness
    -Cough
    -Diarrhea
    -Difficulty breathing, wheezing
    -Difficulty swallowing
    -Dizziness or lightheadedness
    -Flushing or redness of the face
    -Nausea or vomiting
    -Palpitations
    -Swelling of the face, eyes, or tongue
    -Unconsciousness
  • Allergic Reaction

    First-time exposure may produce only a mild reaction. Repeated exposures may lead to more serious reactions. Once a person has had an exposure or an allergic reaction (is sensitized), even a very limited exposure to a very small amount of allergen can trigger a severe reaction. Symptoms for each listed in the last slide
  • Treatment/ Immune system recovery

    Patients with food anaphylaxis need to carry their anaphylactic (severe reactions) emergency medicines with them at all times.They must use epinephrine at the first sign of a severe allergic reaction, or as prescribed. If you do have ongoing allergies and they aren't treated effectively, it could weaken your immune system and make you more susceptible to viruses and other germs.
  • Anaphylaxis/ Immune system over time

    It is not true that allergic reactions will get worse each time someone has an allergic reaction. However, if your allergic reaction is an anaphylactic reaction to an allergen, then they can worsen with each exposure and can lead to death. Anaphylaxis is a life-threatening emergency and should be treated as such.