so I went to the ER a few days ago, and ended up being dehydrated. they also informed me I have a…

so I went to the ER a few days ago, and ended up being dehydrated. they also informed me I have a uti. they said it looked as if I did, but they were sending it out for culture or whatever and that I would know by my next appointment if I have it ( tomorrow ). so they started me on the medicine anyway. now I'm like itchy down there and irritated and swollen. do you think it's because of the medicine? I had no issues before. and seriously considering not taking it anymore.