I was diagnosed with EColi and was prescribed nitrofurantoin for 7 days. Even after 7 days symptoms were not gone 100% . In next urine test no bacteria growth was detected so I was not given any medicine. Also at same time I had anal fissure and was given rectogensic( this was after 14 days from nitrofurantoin course completion. Now when I applied rectogensic it caused headache and my uti symptoms seems to come back. Again doctor has taken urine sample for test and suggested for Amoxicillin. Can anyone guide me on this. ( I am in UK for some sort term project till November end)