Is it possible that maybe you are allergic to personal care product(s), cleaning product(s) or your laundry detergent? So many times now, you hear on the news, scientist and doctors are now relating many of our illnesses to products we use in our homes, on our bodies, etc. My oldest son use to suffer from something similar to your hives. His was not continuous but off and on enough it bothered me. I found a company that has made green products for 23-years, changing my laundry detergent, my cleaning products, his cologne, lotions, etc. I really just converted my home to the safer non-toxic products. While his skin ailment got better and went away for good, I was surprised to see, so did my allergies.