Hi. This looks to be due to a condition called Urethritis , meaning infection or inflammation or urethra. You have rightly mentioned about the condition and the timing. I would suggest such a patient to undergo blood and urine tests; recommend to undergo Urethro- cystoscopy to confirm or rule out the diagnosis. The treatment will contain an antibiotic suitable for urinary tract infection, Urinary alkalinizer ( a liquid to be taken with a glass of water usually after food), plenty of oral fluids to keep the urinary flow and dilution. Further treatment plan would be according to the reports and findings on reports