How annoying are the hives??!! I have had them for eight months & have at times nearly lost the plot! I have found that cutting out Dairy, Soy & wheat has really helped lessen the severity of them. I have also found a really heavy moisturiser that helps too.
I read an interesting article last week regarding a link between hives & low/or no hydrochloric acid levels in the stomach. The article recommended getting this tested & if positive, the treatment is either bitter herbs or hydrochloric acid tablets. As I have been to the doctor about four times already decided to try some harmless options & have been drinking lemon juice with water & have been drinking Dandelion leaf tea & the hives have almost disappeared. It is a miracle!
I would also recommend having your thyroid levels tested, I had only had mine tested a few months prior, but in that time my TSH has risen to 9.5 so my thyroid medication has been increased.
I really hope that you find a solution that works for you as having hives can be very stressful!