allergic urticaria
"So I started taking this medication to help with poison ivy spreading and not being able to sleep because of it. I was prescribed for 5 days on the pill and on my 4th day I woke up to hives all over my stomach and pelvic area. I didn't think it was from the medication so I took it for the last day and it just got worse. It's not been a week and they hives haven't gone down, just got worse and spread more over my body. Really bad reaction and I never get allergic reactions to anything!"