Why is cold and flu medications dangerous for people with high blood pressure?

Among over-the-counter cold remedies, decongestants cause the most concern for people who have high blood pressure. Decongestants relieve nasal stuffiness by narrowing blood vessels and reducing swelling in the nose. This narrowing can affect other blood vessels as well, which can increase blood pressure.

i'm pretty sure questions like these aren't allowd.   but, sure.   i can and talk : ))

answer; (c); /out to the side and directly under the dogs neck.