Welcome to HCM,
You are having urinary symptoms and fever,it is likely that you may have Urinary Tract infection
Please do not treat yourself as use of antibiotic can cause resistance to organisms and there may be reaction to drugs.
Please visit Physician/GP to be examined clinically and with relevant investigations like Complete blood count
and urine culture and sensitivity.
Take proper prescription of urinary specific antibiotics and if there is need it may be changed to most appropriate one along with how long it should be taken which is in uncomplicated cases could be 7 to 10 days.
Organism causing UTI are notorious and sometimes resistant to many drugs so we must take care.
In the meantime take plenty of water and fluid to flush urinary system
You can take cranberry juice and a tab of paracetamol
to get relief from pain and fever.
You can ask me at http://www.healthcaremagic.com/doctors/dr-akhilesh-dubey/63985
Please take care
Dr.Akhilesh Dubey M.D.