I have just finished a 7 day norfloxacin treatment for cytitis & got better. but i still have a mild burning sensation. i don't feel it every time i pee, but once or twice a day when i pee. am not sexually active.any idea what is it & what can i do?

Norfloxacin and other drugs in its class (fluroquinolones) are effective against most but not all bacteria that cause UTI. Your significant improvement suggests it was effective, despite your continued mild symptoms. However, the safest thing is to discuss with your doctor and perhaps have a follow-up urinalysis and culture. In the meantime, drinking lots of fluids should help prevent the burning.