urticaria
"Im 58 and female. After a hive free life I left my home in the S J Valley where the air is terrible (pollen and allergens are bad) to go to Hungary. I had no problem there but  soon as I got back I had lost all immunity to the valley and hives came. After 9 mnths of hives, huge and tiny, itching, burning swelling hands, bottom of feet itch and swell, 2 trips to ER for anaphylactic shock, epi pen, prednisone, Benedryl, 2 Kenelog shots, Singulair, Zantac, Xyzol, Zyrtec and Xanax, after much research, I found Xolair is the only med approved for hives.I FINALLY got started.I am getting 150mg every 2 weeks rather than 300mg p/mo. It seems slow but gradually better. Still get rash, hives shrunk size and amount, only need 2 pills/not 12. Hopeful.."