Thanks for your query,based on the facts that you have posted it appears that you have chronic Prostatitis
secondary to chronic UTI.
Since bacterial flora change their sensitivity pattern please repeat your routine urine test and urine culture done to find out the organisms causing this infection and antibiotics to which they are sensitive to.
Please take broad spectrum antibiotics like Cefotaxime
along with urinary antiseptic like Nitrofurantoin
twice daily and urine alkaliser thrice daily.and later on switch on to appropriate antibiotics as per culture report.
A daily prostatic massage
by q trained health personnel will help to resolve the symptoms .
Please note that prostatitis takes long time to get cured hence you may need to take antibiotics for 6-8 weeks.
Ensure to drink more water.To keep your urine dilute This will help to control dysuria