what does histamine do in the body
Histamine. Histamine is a chemical the immune system uses to help protect the body's cells against infection. The immune system is the body's natural defence against illness and infection.If the immune system detects a harmful foreign object, such as bacteria or a virus, it will release histamine into nearby cells.istamine is a chemical the immune system uses to help protect the body's cells against infection. The immune system is the body's natural defence against illness and infection.