I have hives too. I'm from Brazil and trying to find out a good medicine that will heal me. But I haven't found any one so far. I Started having hives when I was a teenager, on that time, I use to live in The USA, and I took zyrotec once a day. I got better and did not have hives for 8 years. Now, I'm 24, and I'm having this for the the last 4 months. I can't find zyrotec here, I believe it does not have, and the drugs I find here does not seems to work out. I Pray to God that soon I will get better.