I m getting over a head cold that began w/allergies: sore throat, congestion, cough. the cough is breaking up now, but I have what appears to be a rash around my left eye (outside), and it has sprinkled small red dots across my forehead, now going into my hairline, and the rest of my face and neck. My doctor said it was not a rash but a condition caused by blood vessels, vascu--? I was given a shot of Prednisone on my hip, and they took several vials of blood today. What is this, and how dangerous is it, please?