Al the site of an infection or injury, histamine triggers the dilation of blood vessels and makes the blood vessels more permeable, which results in redness and increased skin temperature surrouriding the site. Predict what would happen if someone experiencing allergic reaction took antihistamines, which block histamine receptors

Question

(1 point)

Allergic symptoms would be exacerbated

Allergic symptoms would be diminished

Allergic symptoms would become exacerbated at first and then subsequently diminish

Allergic response would remain unchanged.

Answer 1

(2 points) Allergic symptoms would be diminished. Antihistamines block histamine receptors, leading to a decrease in the inflammatory response typically seen during an allergic reaction. This would result in a reduction in redness, swelling, and itching associated with the allergic response.