I always have a hive(s) on my face, jawline, or scalp. I've had allergy stick tests and blood work for food allergies. The testing was ordered because I developed a polyp in my sinus cavity. Everything came back just fine, except that my immunoglobulin (spelling??) was slightly elevated-120 units. It was suggested that I see a specialist for further testing. When I went off my zyrtec for the allergy testing, I noticed even more hives. Any thoughts as to what else could be going on?