Hi, !
I have to admit; your situation has me stumped. That actually happens a fair amount in this community, as I meet more people with unique allergies. You mentioned that your allergy testing came back normal, except for an elevated IEG. So, with an elevated IGE (did you mean IEG or IGE?), you can definitely experience skin rashes, so that could be something. Also, dry, windy weather can cause rashes and hives, especially if you are allergic to something that may be carried on the wind (like tree or flower pollen, dust, mold, etc). But, you did say that you didn't seem to show any allergies to those types of things. Also, if you break out in hives in cold weather, that could be cold urticaria -- https://www.mayoclinic.org/diseases-conditions/cold-urticaria/symptoms-causes/syc-20371046. I don't *think* that's what you're dealing with, since you mentioned going out in short sleeves. But, I wanted to include the information with you, just in case. Here's some information that you may have already come across about elevated IGE. I generally don't provide data from commercial sites, but I had trouble finding info that was concise on this topic -- https://www.verywellhealth.com/ige-and-asthma-200596. I would definitely talk to your doctor about the elevated test results, if you haven't done so already. If you wear long sleeves, do you still have a reaction?
Best, Erin, Team Member.