Pylenonephritis

Hello Everyone! I am experiencing something strange, and need some advice please. I am an ICU nurse, and I work in a small unit, where one cannot miss work, even when really sick. So, I let a UTI go for way too long, which lead to pylenonephritis. I went to the ER where I work after it got to where I could not walk, sit, etc. Well, the doctor told me three days off work, Levaquin, Pyridum, and pain meds, or be placed in the hospital as an inpatient. Well, I returned to work, still sick, but better, only to be written up for missing three days, and was told that there is no excuse for missing work, even with a doctor's excuse, and that I had made it really hard on my unit trying to cover for my absence. Talk about crying. I really tried not to, but I have been so sick and tired that it really got to me. Well, past that. After a week on Levaquin, which I had never taken before, I started breaking out in a rash that started on my chest and stomach and has since traveled to different places. I started on Benadryl. It helps, but makes me really sleepy. But it is a week after coming off Levaquin, and I feel like the UTI is returning and the rash is still bad, do you guys think it is the Levaquin still causing rash after off it for a week, or do you think the pylenonephritis caused uremia or septicemia, thus causing the rash to develop. Don't know if I should return to doctor, especially with my understanding boss. HAHA! Thanks for the info.