Thanks for your query.
In prostratic Hypeplasia it is common to get discomfort due to urinary obstruction and it may ignite pain. But it may be caused by urinary tract infection
predisposed by Bladder Outlet Obstruction
. For that you are already taking antibiotics( Cifran 500mg). Continue these drugs according to the advise of your doctor.
It is also a fact that Urimax may rarely cause difficult urination but it is not the case with you.
Take rest and keep yourself clean, drink more fluids and cranberry juice can help you to prevent urinary tract infections.
If problem worsens or persists longer then contact your doctor for proper management.
Hope it helps,