Understanding Histamine Intolerance and Allergic Reactions

The immune disorder characterized by the production of histamines is an allergic reaction.

- Histamines are chemicals released by the body in response to an allergen, a substance that triggers an allergic reaction. When an allergen enters the body, the immune system produces antibodies to fight it off. These antibodies bind to the allergen and trigger the release of histamines from mast cells and basophils, which are types of white blood cells.

- Histamines cause the symptoms of an allergic reaction, such as sneezing, watery eyes, a runny nose, and itching. In severe cases, an allergic reaction can cause anaphylaxis, a life-threatening condition that can lead to difficulty breathing, low blood pressure, and even death.