A member asked:

Uti positive for e-coli. taking nitrofurantoin 100 mg bid for 7 days. almost finish my antibiotic this evening, had temperature and back pain ?

7 doctors weighed in across 2 answers

Go back to doctor : The symptoms of fever and back pain in a person being treated for a UTI is concerning for a kidney infection, called pyelonephritis. These can be very serious. You should see your doctor as soon as possible and this should not wait through the weekend.

Answered 3/11/2016

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Check urine culture: The bacteria maybe resistant to macrobid, a rare event but does occur. You may also have a kidney stone or a kidney infection. Given time a delay in treating an UTI may lead to infection reaching the kidney.

Answered 9/14/2019

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