"Allergy is like heat being added to water. You can add a certain amount of histamine release from the mast cell system and the body can absorb it and control it - just like heat can be added to water and nothing happens. But sooner or later the water is going to boil, and that's equivalent to an anaphylactic [severe, potentially life-threatening] reaction. Everybody has a different threshold."
Feel free to be the first
Please review the linked page for context.
If you can think of something better than this,
please add it to the database