A 31 year old woman presents to you complaining of frequent, small volume, painful urination. Her urine is visibly discoloured (she believes it to be blood stained). She is not pregnant and has not had intercourse in the recent past. She denies fever. She reports one bladder infection that was quickly resolved with antibiotics about 5 years previously. She has no allergies. Physical exam is unremarkable, in particular there is no costo-vertebral angle tenderness demonstrated. In-office dip-stick urinalysis reveals 4+ blood, 3+Leukocytes, and Positive Nitrites. You diagnose acute cystitis.
What therapy will you prescribe?
See the discussion here Dysuria in an adult woman – discussion