Histamines

Histamines are chemical substances produced by your immune system in response to allergens, such as pollen, pet dander, or certain foods. They play a crucial role in allergic reactions, causing symptoms like itching, sneezing, and swelling. When allergens enter the body, histamines are released and bind to specific receptors, which triggers these responses to help protect the body. Besides allergies, histamines also regulate functions like stomach acid production and neurotransmission in the brain. Antihistamines are medications that block histamine's effects, providing relief from allergic symptoms.