urticaria
"I'm a male in my mid 30's. Had hives for 3-6 month stretches with 3-6 month breaks since I was 15 years old. Symptoms were as bad as most people on here, but never needed a hospital visit.

Got on Xolair shortly after it was approved by the FDA, around 2-1/2 years ago. Hives were gone within 24 hours and usually the only hive I see is if I'm over-extending my time between shots. Started at 2 shots per visit (300 mg total) every 4 weeks. Now taking 300mg every 6 weeks. Works like a charm. Wish they could get the cost down. Even with insurance and assistance programs I still end up paying a large amount out of pocket. 

All in all a VERY effective medication that I wish had been available years ago!"