Question: I'm into my 7th day of taking Bactrim, twice a day, for the symptoms described below. The first couple of days had me thinking I was going to have a quick recovery, but since then, it's been a roller coaster ride --- one day back to having the symptoms, the next day feeling better. Today I don't feel I've gotten much if any better. You can see the dialogue from last week with "Ask a Doctor". What should my next step be? Thank you.
Keith Doades

For the past few days, I've had an almost constant prickling or tingling at the end of my penus...and it causes a constant feeling of the need to urinate.
Asked by Me , 6 days ago
Doctor's reply to your question above...
Brief Answer:
Urinary track infection possible.

Detailed Answer:
Hello dear, welcome to Ask a doctor service.
I read your query and here is my advice.

The symptoms of discomfort in tip of penis and tingling sensation together with frequent need to urinate are symptoms of urinary track infection.
If possible do an urine analysis to confirm it or better am uroculture which also can show the type of antibiotic which is better used to fight it.
I would have treated you empirically with bactrim twice daily for 5 days.
Also you can use cranberry juice or tea found over the counter in pharmacy to help with disinfection.
Using ibuprofen is very useful to help with symptoms subside the discomfort and help with possible fever.

Hope I have answered the question.
Let me know if I can assist you further.
Replied by Dr. Olgeta Xhufka , 5 days ago
Disclaimer: The Expert's advice is provided for general informational purposes only and SHOULD NOT be relied upon as a substitute for sound professional medical advice, as a complete assessment of an individual has not taken place. Please consult your nearest physician before acting on it. The advice is not valid for medico-legal purposes also.