Nothing to Sneeze at: Understanding Histamine Intolerance and Mast Cell Activation Syndrome

Want to share this article? Visit our re-post guidelines. Article summary: Histamine is a vital part of the body’s immune defense system. When a person has allergies, their immune system views specific allergens as threats. It responds by releasing histamine to remove them. Only certain cells in the body can make histamine. Anaphylaxis is a…