kidney infection

hi iv just had a kidney infection i saw my doctor who gave me antibiotics its been a week now but iv finnished my prescription but iv still got back ache and also fever  why is it still here the infection ?

[Paderla Anitha, DNB]

Hello and hope you are doing well.

The pain could be due to persisting infection. Have a culture and sensitivity test done to find out the correct antibiotic that the infecting organism is sensitive to and taking this medication for the required amount of days may help to clear urinary tract infection. Please re consult your doctor. In the meantime consume plenty of oral fluids.

Hope this helped and do keep us posted.