Macrobid, Hives, Emerg

I woke up in the morning with the worst UTI on my day off, without even thining twice i ran to the nearest medicenter and got Macrobid for it. The same day i took it i was itchy but no hives, second day was the same and i was not feeling very good overall. I called the dr and was told to keep taking the meds but to watch out for hives and if symptoms get worse to stop taking them and come back for a different drug. On my very last day of taking Macrobid (7 days, 14 pills) i was at work and broke out in hives. I took some Reactine and 30 min later everything got worse. My arm was so hot and my vein was popping right out that my co-worker got freaked out. Thank God for working in a hospital, i just went to the emerg and they took me in right away and knocked me out for a few hours on an iv. After i was given a few more pills just to keep my hives down and for the itching to stop. Im done those pills and it's been about 2 weeks since i've been off Macrobid and i still get some flare ups and hives here and there but it's not as bad as it was. I will never take this drug again in my life, the side effects were perhaps worse than the UTI itself. It is the most irratating thing to either not being able to scratch an itch or to go and scratch it and then have an ugly looking hive on your body that is hotter than the sun!!!!!