I always have a hive(s) on my face, jawline, or scalp.  Ive 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?
HI, thanks for using Chat Doctor It would be best to see an allergist for additional testing. You may also want to expand the profile to include other types of foods, environmental allergens and medications. It is possible that your symptoms may be related to chronic urticaria-the recurrence of hive/urticaria for 6 weeks or more. There are a number of different possible causes including(1) physical causes (pressure, cold, sun, water, heat, exercise, pressure to the skin, stress), (2)associated with other illnesses-lupus, thyroid disease, infectionWhen you are reviewed by your doctor and additional testing done then it is possible the cause may be found. I hope this helps