2 doctors weighed in:

Why are chronic hives red, raised, and itchy without medicine, but they're redder, flat (not raised), and do not itch after taking an antihistamine?

2 doctors weighed in
Dr. Kristin Sokol
Internal Medicine - Allergy & Immunology
1 doctor agrees

In brief: Antihistamines

Antihistamines work to reduce the amount of histamine released from cells in the body called mast cells.
Histamine is responsible for the raised itchy feeling of hives. Thus, antihistamines reduce these symptoms.

In brief: Antihistamines

Antihistamines work to reduce the amount of histamine released from cells in the body called mast cells.
Histamine is responsible for the raised itchy feeling of hives. Thus, antihistamines reduce these symptoms.
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