How does Benadryl fight allergies?

Answer by  AnnieBlosom (31)

Benadryl (Diphenhydramine) is an antihistamine used for treating allergic reactions. When Histamine is released by the body, it causes reactions such as sneezing, runny nose, itchiness, pain, and hives. The histamine binds to its receptors on cells, and antihistamine such as Benadryl, works by competing with histamine for cell receptors and prevents the body from releasing histamine.

Answer by  workoutchamp (103)

Yes, Benadryl reduces histamines. Histamines are part of your body's immune system and become active when foreign particles enter your body.