Prolonged swelling after Hydrocele Surgery

On november 19th of 2009 I had surgery to repair the hydrocele on my right testicle. My urologist said surgery went fine, everything is OK. It is now almost april and my testicle is still swollen, enlarged. I have had two ultrasounds done and no problems were found. Both testicles show identical measurement size. A couple weeks after surgery i had an appointment with my urologist and he thought i had an infection and prescribed me with an antibiotic. There was no change. My family doctor just gave me a prescription of Ciprofloxacin to see if that will help.             What would the problem be? my urologist doesn't seem to know because he said my next appoint should be in 6 months.. which is about  four months from now. There has been no change or improvement since December so I dont see how waiting 6 months could help. Any help is much appreciated.