I Went In To Minuteclinic Thinking I Had A Bladder

I went in to minuteclinic thinking I had a bladder infection. So they said yes I do have bladder infection but also did a urine culture. It came back ecoli. I need to know if the medication o have been prescribed is the right one. For I still suffer with some of the symptoms & discomfort. It is nitrofurantoin (macrobid)