A 27 year old female presented with her mother at your afternoon surgery on a Friday. She had a 2 week history of right sided flank pain which was stabbing in nature. She denied any relieving or aggravating factors. She had tried Paracetamol but it did not help her. Pain was not impacting her daily life. She had a past medical history of recurrent Urinary Tract Infections (UTIs) but the last one was more than a year ago. Her mother stressed that this pain was different from her usual UTI presentation. Abdominal examination was unremarkable and vital signs stable. A urine dip was positive for nitrates and pregnancy test was negative.
What is the single best treatment option at this point?