A member asked:

Do allergic reactions constrict or dilate blood vessels?

A doctor has provided 1 answer

Dilate: In the nose this leads to congestion and runny nose. If the reaction is systemic, then blood vessel dilation leads to low blood pressure.

Answered 9/28/2016

5.7k views

Thank

Related Questions

A member asked:

Which nerve system regulates dialation of the blood vessels?

A doctor has provided 1 answer